{"id":526,"date":"2026-08-17T20:47:15","date_gmt":"2026-08-17T20:47:15","guid":{"rendered":"https:\/\/medatlashealth.com\/?p=526"},"modified":"2026-10-28T12:17:00","modified_gmt":"2026-10-28T12:17:00","slug":"how-blood-circulates-through-your-body","status":"publish","type":"post","link":"https:\/\/medatlashealth.com\/sr\/how-blood-circulates-through-your-body\/","title":{"rendered":"Kako krv cirkuli\u0161e kroz telo: Putovanje crvenog krvnog zrnca"},"content":{"rendered":"<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"has-text-align-left wp-block-paragraph\">Svake sekunde va\u0161eg \u017eivota, bilioni crvenih krvnih zrnaca putuju kroz izuzetno slo\u017eenu mre\u017eu krvnih sudova.<\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Prolaze kroz srce, kre\u0107u se prema plu\u0107ima, preuzimaju kiseonik, putuju kroz arterije, provla\u010de se kroz mikroskopske kapilare i na kraju se vra\u0107aju u srce kako bi zapo\u010dela novi krug.<\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">Rad ovog ogromnog transportnog sistema uop\u0161te ne ose\u0107ate \u2014 a ipak, gotovo svaka \u0107elija u va\u0161em organizmu zavisi od njega.<\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">\u0160ta se zapravo de\u0161ava sa crvenim krvnim zrncem dok putuje kroz va\u0161e telo?<\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Hajde da pratimo jedno od njih.<\/p>\n<\/div>\n\n\n<style>.kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-table-of-content-wrap{padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-right:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);padding-left:var(--global-kb-spacing-sm, 1.5rem);background-color:#dbe7f5;border-top:1px solid var(--global-palette1, #3182CE);border-right:1px solid var(--global-palette1, #3182CE);border-bottom:1px solid var(--global-palette1, #3182CE);border-left:1px solid var(--global-palette1, #3182CE);border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-right-radius:18px;border-bottom-left-radius:18px;}.kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-table-of-contents-title-wrap{padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-table-of-contents-title-wrap{color:#245fb8;}.kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-table-of-contents-title{color:#245fb8;font-size:20px;font-weight:regular;font-style:normal;}.kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-table-of-content-wrap .kb-table-of-content-list{font-weight:regular;font-style:normal;margin-top:var(--global-kb-spacing-sm, 1.5rem);margin-right:0px;margin-bottom:0px;margin-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-toggle-icon-style-basiccircle .kb-table-of-contents-icon-trigger:after, .kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-toggle-icon-style-basiccircle .kb-table-of-contents-icon-trigger:before, .kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-toggle-icon-style-arrowcircle .kb-table-of-contents-icon-trigger:after, .kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-toggle-icon-style-arrowcircle .kb-table-of-contents-icon-trigger:before, .kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-toggle-icon-style-xclosecircle .kb-table-of-contents-icon-trigger:after, .kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-toggle-icon-style-xclosecircle .kb-table-of-contents-icon-trigger:before{background-color:#dbe7f5;}@media all and (max-width: 1024px){.kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-table-of-content-wrap{border-top:1px solid var(--global-palette1, #3182CE);border-right:1px solid var(--global-palette1, #3182CE);border-bottom:1px solid var(--global-palette1, #3182CE);border-left:1px solid var(--global-palette1, #3182CE);}}@media all and (max-width: 767px){.kb-table-of-content-nav.kb-table-of-content-id526_156074-1d .kb-table-of-content-wrap{border-top:1px solid var(--global-palette1, #3182CE);border-right:1px solid var(--global-palette1, #3182CE);border-bottom:1px solid var(--global-palette1, #3182CE);border-left:1px solid var(--global-palette1, #3182CE);}}<\/style>\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_675896-4f .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_675896-4f{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_675896-4f alignnone\"><style>.kt-svg-item-526_40fb5d-80 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_40fb5d-80 .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_40fb5d-80\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_821549-b4 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_821549-b4 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_821549-b4\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-1\" style=\"border-top-left-radius:190px;border-top-right-radius:190px;border-bottom-left-radius:190px;border-bottom-right-radius:190px;color:#245fb8\">Upoznajte crveno krvno zrnce<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph translation-block\">Crvena krvna zrnca, poznata i kao eritrociti, specijalizovane su krvne \u0107elije \u010dija je glavna uloga transport kiseonika iz plu\u0107a do tkiva \u0161irom organizma.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Njihov karakteristi\u010dan bikonkavni oblik \u2014 tanji u sredini, a deblji na ivicama \u2014 obezbe\u0111uje veliku povr\u0161inu za razmenu gasova i omogu\u0107ava im dovoljnu fleksibilnost da prolaze kroz izuzetno uske kapilare.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"683\" data-id=\"527\" src=\"https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Red-cells-1024x683.png\" alt=\"\" class=\"wp-image-527\" srcset=\"https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Red-cells-1024x683.png 1024w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Red-cells-300x200.png 300w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Red-cells-768x512.png 768w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Red-cells.png 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph translation-block\" style=\"padding-top:var(--wp--preset--spacing--40)\">Unutar svakog crvenog krvnog zrnca nalaze se milioni molekula hemoglobina, proteina koji sadr\u017ei gvo\u017e\u0111e i mo\u017ee da vezuje kiseonik.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zahvaljuju\u0107i tome, crveno krvno zrnce mo\u017eemo zamisliti kao mikroskopsko transportno sredstvo za kiseonik.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Me\u0111utim, na\u0161e putovanje po\u010dinje nakon \u0161to je veliki deo tog kiseonika ve\u0107 isporu\u010den tkivima.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_cb4090-7c .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_cb4090-7c{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_cb4090-7c alignnone\"><style>.kt-svg-item-526_7f94d0-a7 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_7f94d0-a7 .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_7f94d0-a7\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_6d49d5-56 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_6d49d5-56 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_6d49d5-56\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-2\" style=\"border-top-left-radius:225px;border-top-right-radius:225px;border-bottom-left-radius:225px;border-bottom-right-radius:225px;color:#245fb8\">Korak 1: Povratak iz tkiva u srce<\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Zamislite da je na\u0161e crveno krvno zrnce upravo pro\u0161lo kroz tkiva va\u0161e noge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Predalo je veliki deo svog kiseonika \u0107elijama kojima je potreban za metaboli\u010dke procese. Istovremeno, ugljen-dioksid koji te \u0107elije proizvode prelazi u krv i transportuje se prema plu\u0107ima, gde \u0107e biti eliminisan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Krv je sada relativno siroma\u0161na kiseonikom.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Male vene postepeno se spajaju u sve ve\u0107e vene dok se krv kre\u0107e prema srcu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Na kraju, krv iz donjeg dela tela dospeva u veliki krvni sud \u2014 donju \u0161uplju venu (vena cava inferior).<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Krv koja se vra\u0107a iz glave, vrata, ruku i gornjeg dela grudnog ko\u0161a dolazi kroz drugi veliki krvni sud \u2014 gornju \u0161uplju venu (vena cava superior).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obe se ulivaju na isto mesto:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na\u0161e crveno krvno zrnce stiglo je do srca \u2014 u desnu pretkomoru.<strong>.<\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_9ef514-da .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_9ef514-da{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_9ef514-da alignnone\"><style>.kt-svg-item-526_9a4d2f-96 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_9a4d2f-96 .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_9a4d2f-96\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_43ff47-a6 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_43ff47-a6 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_43ff47-a6\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-3\" style=\"border-top-left-radius:190px;border-top-right-radius:190px;border-bottom-left-radius:190px;border-bottom-right-radius:190px;color:#245fb8\">Korak 2: Ulazak u desnu stranu srca<\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group has-border-color has-background\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-71739e78 wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Srce ima \u010detiri \u0161upljine:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Desnu pretkomoru<\/li>\n\n\n\n<li>Desnu komoru<\/li>\n\n\n\n<li>Levu pretkomoru<\/li>\n\n\n\n<li>Levu komoru<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Desna strana srca prvenstveno prima krv siroma\u0161nu kiseonikom koja se vra\u0107a iz tela i usmerava je prema plu\u0107ima.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na\u0161e crveno krvno zrnce prvo ulazi u desnu pretkomoru. <strong>right atrium<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Odatle prolazi kroz trikuspidalni zalistak i ulazi u desnu komoru.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sr\u010dani zalisci funkcioni\u0161u kao jednosmerna vrata. Njihovo uskla\u0111eno otvaranje i zatvaranje poma\u017ee da se krv kre\u0107e u pravilnom smeru.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kada se desna komora kontrahuje, pritisak u njoj raste.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Trikuspidalni zalistak se zatvara iza krvi, dok se plu\u0107ni zalistak ispred nje otvara.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na\u0161e crveno krvno zrnce potiskuje se iz srca.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Njegovo slede\u0107e odredi\u0161te su plu\u0107a.<\/p>\n<\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/structure-of-heart-1024x683.png\" alt=\"\" class=\"wp-image-530\" style=\"aspect-ratio:1.499310034979622;width:703px;height:auto\" srcset=\"https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/structure-of-heart-1024x683.png 1024w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/structure-of-heart-300x200.png 300w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/structure-of-heart-768x512.png 768w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/structure-of-heart.png 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_a4181c-c9 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_a4181c-c9{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_a4181c-c9 alignnone\"><style>.kt-svg-item-526_260b7c-92 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_260b7c-92 .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_260b7c-92\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_aedea5-f0 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_aedea5-f0 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_aedea5-f0\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-4\" style=\"border-top-left-radius:209px;border-top-right-radius:209px;border-bottom-left-radius:209px;border-bottom-right-radius:209px;color:#245fb8\">Korak 3: Putovanje kroz plu\u0107ne arterije<\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph translation-block\">Nakon izlaska iz desne komore, krv ulazi u plu\u0107no stablo, koje se deli na desnu i levu plu\u0107nu arteriju.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ovde nailazimo na va\u017ean izuzetak od jednog \u010desto pojednostavljenog pravila.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Arterije se \u010desto opisuju kao krvni sudovi koji prenose krv bogatu kiseonikom, ali takva definicija nije potpuno ta\u010dna.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Arterije se zapravo defini\u0161u prema smeru protoka krvi: one odvode krv od srca. Zbog toga plu\u0107ne arterije prenose krv siroma\u0161nu kiseonikom od srca prema plu\u0107ima.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kako na\u0161e crveno krvno zrnce putuje sve dublje kroz plu\u0107a, plu\u0107ne arterije se vi\u0161e puta granaju u sve manje krvne sudove.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Na kraju dospeva do mre\u017ee si\u0107u\u0161nih plu\u0107nih kapilara koji okru\u017euju mikroskopske vazdu\u0161ne kesice u plu\u0107ima \u2014 alveole.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_ca69bc-d9 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_ca69bc-d9{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_ca69bc-d9 alignnone\"><style>.kt-svg-item-526_dc8952-7c .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_dc8952-7c .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_dc8952-7c\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_53f5ce-61 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_53f5ce-61 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_53f5ce-61\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center medatlas-h2 has-text-color has-link-color wp-elements-5\" style=\"border-top-left-radius:225px;border-top-right-radius:225px;border-bottom-left-radius:225px;border-bottom-right-radius:225px;color:#245fb8\">Korak 4: Preuzimanje kiseonika u plu\u0107ima<\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Zidovi koji razdvajaju vazduh unutar alveola od krvi u plu\u0107nim kapilarima izuzetno su tanki.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To omogu\u0107ava razmenu gasova izme\u0111u plu\u0107a i krvotoka.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Kiseonik iz udahnutog vazduha prelazi u krv i vezuje se za hemoglobin unutar crvenih krvnih zrnaca.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Istovremeno, ugljen-dioksid kre\u0107e se u suprotnom smeru \u2014 iz krvi prema alveolama \u2014 kako bi se zatim iz organizma izbacio izdahom.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na\u0161e crveno krvno zrnce sada nosi novu zalihu kiseonika.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spremno je da se vrati u srce.<\/p>\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Oxygen-picking-up-1024x683.png\" alt=\"\" class=\"wp-image-531\" srcset=\"https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Oxygen-picking-up-1024x683.png 1024w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Oxygen-picking-up-300x200.png 300w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Oxygen-picking-up-768x512.png 768w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Oxygen-picking-up.png 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_79d2dd-18 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_79d2dd-18{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_79d2dd-18 alignnone\"><style>.kt-svg-item-526_3412dd-53 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_3412dd-53 .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_3412dd-53\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_7a94ad-ca .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_7a94ad-ca .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_7a94ad-ca\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-6\" style=\"border-top-left-radius:177px;border-top-right-radius:177px;border-bottom-left-radius:177px;border-bottom-right-radius:177px;color:#245fb8\">Korak 5: Povratak u levu stranu srca<\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph translation-block\">Krv bogata kiseonikom napu\u0161ta plu\u0107a kroz plu\u0107ne vene.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ovi krvni sudovi predstavljaju jo\u0161 jedan va\u017ean izuzetak koji treba zapamtiti.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Ve\u0107ina vena prenosi krv siroma\u0161nu kiseonikom, ali plu\u0107ne vene prenose krv bogatu kiseonikom.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dakle, venu ne defini\u0161e koli\u010dina kiseonika u krvi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Vene su krvni sudovi koji prenose krv prema srcu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Plu\u0107ne vene dovode na\u0161e crveno krvno zrnce u levu pretkomoru.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Odatle ono prolazi kroz mitralni zalistak i ulazi u levu komoru.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sada je stiglo do najsna\u017enije pumpne komore srca.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_a1fd2c-b9 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_a1fd2c-b9{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_a1fd2c-b9 alignnone\"><style>.kt-svg-item-526_1b9dec-5e .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_1b9dec-5e .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_1b9dec-5e\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_814c60-7a .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_814c60-7a .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_814c60-7a\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-7\" style=\"border-top-left-radius:222px;border-top-right-radius:222px;border-bottom-left-radius:222px;border-bottom-right-radius:222px;color:#245fb8\">Korak 6: Leva komora \u2014 priprema za veliko putovanje<\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph translation-block\">Leva komora ima posebno debeo mi\u0161i\u0107ni zid jer mora da stvori dovoljno visok pritisak da bi potisnula krv kroz sistemsku cirkulaciju.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Kada se kontrahuje, mitralni zalistak se zatvara, a aortni zalistak se otvara.<\/p>\n\n\n\n<div class=\"wp-block-group has-border-color has-background\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:5px;padding-right:5px;padding-bottom:5px;padding-left:5px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-2679e2a0 wp-block-group-is-layout-constrained\">\n<p class=\"has-text-align-center wp-block-paragraph translation-block\">Na\u0161e crveno krvno zrnce, sada bogato kiseonikom, prolazi kroz zalistak i ulazi u najve\u0107u arteriju u telu: AORTU.<\/p>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Odavde krv mo\u017ee dospeti do gotovo svih delova organizma.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Putovanje kroz sistemsku cirkulaciju je po\u010delo.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_4b8987-bc .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_4b8987-bc{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_4b8987-bc alignnone\"><style>.kt-svg-item-526_95ef1e-7e .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_95ef1e-7e .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_95ef1e-7e\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_296e86-bc .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_296e86-bc .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_296e86-bc\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-8\" style=\"border-top-left-radius:186px;border-top-right-radius:186px;border-bottom-left-radius:186px;border-bottom-right-radius:186px;color:#245fb8\">Korak 7: Od aorte do arterija<\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Zamislite cirkulatorni sistem kao ogromnu razgranatu transportnu mre\u017eu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aorta je njen glavni autoput.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Iz nje se odvajaju velike arterije koje se dalje granaju u sve manje arterije. One zatim prelaze u jo\u0161 manje arteriole, koje vode prema mre\u017eama kapilara.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Razli\u010dite grane dovode krv do razli\u010ditih organa i tkiva.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Neke vode prema mozgu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Druge snabdevaju bubrege, organe za varenje, mi\u0161i\u0107e i ko\u017eu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">\u010cak je i samom srcu potrebno sopstveno snabdevanje krvlju. Koronarne arterije, koje se odvajaju u blizini po\u010detka aorte, dopremaju krv bogatu kiseonikom do sr\u010danog mi\u0161i\u0107a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na\u0161e crveno krvno zrnce moglo bi da krene bezbrojnim razli\u010ditim putevima.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Suppose this time it enters an artery supplying a working muscle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pretpostavimo da ovog puta ulazi u arteriju koja snabdeva aktivni mi\u0161i\u0107.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na kraju, na\u0161e crveno krvno zrnce sti\u017ee u mikroskopski svet kapilara.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_5551f6-87 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_5551f6-87{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_5551f6-87 alignnone\"><style>.kt-svg-item-526_f176ee-99 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_f176ee-99 .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_f176ee-99\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_52a615-ed .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_52a615-ed .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_52a615-ed\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-9\" style=\"border-top-left-radius:258px;border-top-right-radius:258px;border-bottom-left-radius:258px;border-bottom-right-radius:258px;color:#245fb8\">Korak 8: Ulazak u kapilare<\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Kapilari su me\u0111u najmanjim krvnim sudovima u organizmu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Njihovi zidovi su izuzetno tanki, \u0161to ih \u010dini idealnim mestom za razmenu materija izme\u0111u krvi i okolnih tkiva.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ovde kiseonik mo\u017ee prelaziti iz krvi do \u0107elija kojima je potreban.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hranljive i druge materije tako\u0111e se razmenjuju, dok produkti metabolizma prelaze iz tkiva u krvotok.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fleksibilan oblik crvenih krvnih zrnaca omogu\u0107ava im da menjaju oblik dok prolaze kroz izuzetno uske kapilare.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ovde kona\u010dno sti\u017ee kiseonik koji je na\u0161e crveno krvno zrnce preuzelo u plu\u0107ima.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hemoglobin osloba\u0111a kiseonik, koji zatim postaje dostupan okolnim tkivima.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Crveno krvno zrnce zavr\u0161ilo je svoju isporuku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ali njegovo putovanje jo\u0161 nije gotovo.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_f4ad26-69 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_f4ad26-69{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_f4ad26-69 alignnone\"><style>.kt-svg-item-526_73048f-c5 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_73048f-c5 .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_73048f-c5\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_9549eb-54 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_9549eb-54 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_9549eb-54\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-10\" style=\"border-top-left-radius:294px;border-top-right-radius:294px;border-bottom-left-radius:294px;border-bottom-right-radius:294px;color:#245fb8\">Korak 9: Od kapilara do vena<\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph translation-block\">Nakon prolaska kroz mre\u017eu kapilara, krv ulazi u sitne krvne sudove koji se nazivaju venule.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Venule se me\u0111usobno spajaju i formiraju sve ve\u0107e vene.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pritisak u ovom delu cirkulacije znatno je ni\u017ei nego u arterijama.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">U mnogim delovima tela \u2014 naro\u010dito u nogama \u2014 vene sadr\u017ee zaliske koji poma\u017eu u spre\u010davanju vra\u0107anja krvi unazad. Kontrakcije skeletnih mi\u0161i\u0107a tako\u0111e poma\u017eu kretanju venske krvi prema srcu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na\u0161e crveno krvno zrnce nastavlja svoj povratak.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na kraju dospeva do gornje ili donje \u0161uplje vene.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ispred njega je desna pretkomora.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u010citav ciklus uskoro po\u010dinje iznova.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_da0179-44 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_da0179-44{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_da0179-44 alignnone\"><style>.kt-svg-item-526_c8ca92-fb .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_c8ca92-fb .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_c8ca92-fb\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_67e624-24 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_67e624-24 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_67e624-24\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-11\" style=\"border-top-left-radius:216px;border-top-right-radius:216px;border-bottom-left-radius:216px;border-bottom-right-radius:216px;color:#245fb8\">Dva krvotoka koja funkcioni\u0161u kao jedan<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Iako krv prati jedan neprekidan put, cirkulacija se obi\u010dno deli na dva glavna krvotoka.<\/p>\n\n\n\n<div class=\"wp-block-group has-border-color has-background\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-71739e78 wp-block-group-is-layout-constrained\">\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-12\" style=\"color:#245fb8\">          Plu\u0107na cirkulacija<\/h4>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Plu\u0107na cirkulacija prenosi krv izme\u0111u srca i plu\u0107a.<\/p>\n\n\n\n<p class=\"has-text-align-center has-border-color has-theme-palette-8-background-color has-background wp-block-paragraph\" style=\"border-color:#9ec4f0;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:5px;padding-bottom:5px\"><strong>Desna komora \u2192 plu\u0107ne arterije \u2192 plu\u0107a \u2192 plu\u0107ne vene \u2192 leva pretkomora<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Njena glavna uloga je da omogu\u0107i krvi da oslobodi ugljen-dioksid i preuzme kiseonik.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-border-color has-background\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-71739e78 wp-block-group-is-layout-constrained\">\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-13\" style=\"color:#245fb8\">          Sistemska cirkulacija<\/h4>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Sistemska cirkulacija prenosi krv izme\u0111u srca i ostatka organizma.<\/p>\n\n\n\n<p class=\"has-text-align-center has-border-color has-theme-palette-8-background-color has-background wp-block-paragraph\" style=\"border-color:#9ec4f0;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:5px;padding-bottom:5px\"><strong>Leva komora \u2192 aorta \u2192 arterije \u2192 kapilari \u2192 vene \u2192 \u0161uplje vene \u2192 desna pretkomora<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ovaj krvotok doprema kiseonik i hranljive materije tkivima, dok istovremeno odnosi produkte metabolizma.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zajedno, plu\u0107na i sistemska cirkulacija \u010dine neprekidan ciklus kretanja krvi kroz kardiovaskularni sistem.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-video aligncenter\" style=\"margin-top:var(--wp--preset--spacing--40);margin-right:var(--wp--preset--spacing--20);margin-bottom:var(--wp--preset--spacing--40);margin-left:var(--wp--preset--spacing--20)\"><video height=\"720\" style=\"aspect-ratio: 1280 \/ 720;\" width=\"1280\" autoplay controls muted src=\"https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Red-blood-cell-circulating-1.mp4\"><\/video><\/figure>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_ad7c26-33 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_ad7c26-33{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_ad7c26-33 alignnone\"><style>.kt-svg-item-526_f2789a-55 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_f2789a-55 .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_f2789a-55\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_3f25c8-2c .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_3f25c8-2c .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_3f25c8-2c\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-14\" style=\"border-top-left-radius:216px;border-top-right-radius:216px;border-bottom-left-radius:216px;border-bottom-right-radius:216px;color:#245fb8\">Za\u0161to je neprekidan protok krvi toliko va\u017ean<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Va\u0161im \u0107elijama je za normalno funkcionisanje potrebno neprekidno snabdevanje kiseonikom i hranljivim materijama.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kardiovaskularni sistem obezbe\u0111uje ovo snabdevanje, dok istovremeno poma\u017ee u transportu ugljen-dioksida, produkata metabolizma, hormona, \u0107elija imunskog sistema i mnogih drugih supstanci kroz organizam.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Neki organi su posebno osetljivi na prekid protoka krvi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mozak i srce, na primer, u velikoj meri zavise od neprekidnog snabdevanja kiseonikom.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zbog toga ozbiljni poreme\u0107aji cirkulacije \u2014 kao \u0161to su sr\u010dani zastoj ili za\u010depljenje va\u017enog krvnog suda \u2014 mogu veoma brzo postati \u017eivotno ugro\u017eavaju\u0107a medicinska stanja.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zdrava cirkulacija ne podrazumeva samo kretanje krvi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Njena uloga je da odr\u017eava uslove koji omogu\u0107avaju bilionima \u0107elija da ostanu \u017eive i zajedno funkcioni\u0161u.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_76df16-a0 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_76df16-a0{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_76df16-a0 alignnone\"><style>.kt-svg-item-526_4e2c0c-c5 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_4e2c0c-c5 .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_4e2c0c-c5\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_c3dea9-87 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_c3dea9-87 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_c3dea9-87\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-15\" style=\"border-top-left-radius:190px;border-top-right-radius:190px;border-bottom-left-radius:190px;border-bottom-right-radius:190px;color:#245fb8\">Jedna si\u0107u\u0161na \u0107elija, jedno neverovatno putovanje<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Crveno krvno zrnce je mikroskopski malo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ipak, njegovo putovanje otkriva jedan od najneverovatnijih sistema u ljudskom organizmu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ono putuje iz tkiva do desne strane srca, zatim kroz plu\u0107a, ulazi u levu stranu srca i nastavlja kroz ogromnu razgranatu mre\u017eu arterija i kapilara, pre nego \u0161to ponovo zapo\u010dne povratak.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Srce obezbe\u0111uje snagu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Krvni sudovi obezbe\u0111uju puteve.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Plu\u0107a obezbe\u0111uju kiseonik.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A crvena krvna zrnca obezbe\u0111uju transport.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sve se to odvija automatski \u2014 svake sekunde, svakog minuta i svakog dana.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Slede\u0107i put kada osetite otkucaje svog srca, setite se:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ose\u0107ate pumpu koja u tom trenutku pokre\u0107e milijarde mikroskopskih putovanja kroz \u010ditav va\u0161 organizam.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-border-color has-background\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:10px;padding-right:18px;padding-bottom:10px;padding-left:18px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-5efda55f wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group medatlas-h2 has-border-color has-background is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-930d7113 wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><style>.kt-svg-icons526_fc8290-55 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons526_fc8290-55{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons526_fc8290-55 alignnone\"><style>.kt-svg-item-526_c4946b-e8 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_c4946b-e8 .kb-svg-icon-wrap{color:#f31a1a;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_c4946b-e8\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_droplet\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M3 0l-.34.34c-.11.11-2.66 2.69-2.66 4.88 0 1.65 1.35 3 3 3s3-1.35 3-3c0-2.18-2.55-4.77-2.66-4.88l-.34-.34zm-1.5 4.72c.28 0 .5.22.5.5 0 .55.45 1 1 1 .28 0 .5.22.5.5s-.22.5-.5.5c-1.1 0-2-.9-2-2 0-.28.22-.5.5-.5z\" transform=\"translate(1)\"\/><\/svg><\/span><\/div>\n\n\n<style>.kt-svg-item-526_615b1c-30 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-526_615b1c-30 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-526_615b1c-30\"><span class=\"kb-svg-icon-wrap kb-svg-icon-ic_circular\"><svg viewbox=\"0 0 8 8\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M4 0c-1.65 0-3 1.35-3 3h-1l1.5 2 1.5-2h-1c0-1.11.89-2 2-2v-1zm2.5 1l-1.5 2h1c0 1.11-.89 2-2 2v1c1.65 0 3-1.35 3-3h1l-1.5-2z\" transform=\"translate(0 1)\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-16\" style=\"border-top-left-radius:193px;border-top-right-radius:193px;border-bottom-left-radius:193px;border-bottom-right-radius:193px;color:#245fb8\">\u010cesto postavljana pitanja<\/h3>\n<\/div>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Da li arterije uvek prenose krv bogatu kiseonikom?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">Ne. Arterije se defini\u0161u kao krvni sudovi koji odvode krv od srca. Plu\u0107ne arterije prenose krv siroma\u0161nu kiseonikom iz desne komore prema plu\u0107ima.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Da li vene uvek prenose krv siroma\u0161nu kiseonikom?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">Ne. Vene su krvni sudovi koji prenose krv prema srcu. Plu\u0107ne vene predstavljaju va\u017ean izuzetak jer prenose krv bogatu kiseonikom iz plu\u0107a u levu pretkomoru.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Gde krv preuzima kiseonik?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">Krv se oboga\u0107uje kiseonikom prvenstveno u plu\u0107nim kapilarima koji okru\u017euju alveole u plu\u0107ima. Kiseonik prelazi iz alveola u krvotok i vezuje se za hemoglobin unutar crvenih krvnih zrnaca.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Gde krv osloba\u0111a kiseonik?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">Najve\u0107i deo kiseonika predaje se u sistemskim kapilarima, gde kiseonik prelazi iz krvi u okolna tkiva.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>\u0160ta spre\u010dava vra\u0107anje krvi unazad kroz srce?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">\u010cetiri sr\u010dana zaliska \u2014 trikuspidalni, plu\u0107ni, mitralni i aortni \u2014 poma\u017eu u odr\u017eavanju jednosmernog protoka krvi kroz srce.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Koja je razlika izme\u0111u plu\u0107ne i sistemske cirkulacije?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">Plu\u0107na cirkulacija prenosi krv izme\u0111u srca i plu\u0107a. Sistemska cirkulacija prenosi krv izme\u0111u srca i ostatka organizma.<\/p>\n<\/details>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-border-color\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-71739e78 wp-block-group-is-layout-constrained\">\n<h4 class=\"wp-block-heading has-text-align-center\">Medicinska napomena<\/h4>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Ovaj \u010dlanak je namenjen isklju\u010divo u edukativne svrhe i ne predstavlja zamenu za stru\u010dni medicinski savet, dijagnozu ili le\u010denje. Uporne ili zabrinjavaju\u0107e respiratorne simptome treba da proceni kvalifikovani zdravstveni radnik.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-border-color\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-dc33374f wp-block-group-is-layout-constrained\">\n<h4 class=\"wp-block-heading has-text-align-center\"><strong>References &amp; Medical Sources<\/strong><\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>American Heart Association (AHA)<\/strong> \u2014 <em>How the Healthy Heart Works<\/em><\/li>\n\n\n\n<li><strong>Cleveland Clinic<\/strong> \u2014 <em>How Does Blood Flow Through Your Heart?<\/em><\/li>\n\n\n\n<li><strong>Cleveland Clinic<\/strong> \u2014 <em>Circulatory System<\/em><\/li>\n\n\n\n<li><strong>MedlinePlus<\/strong> \u2014 <em>Heart and Circulation<\/em><\/li>\n\n\n\n<li><strong>National Heart, Lung, and Blood Institute (NHLBI)<\/strong> \u2014 <em>How the Heart Works<\/em><\/li>\n<\/ol>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Saznajte kako krv cirkuli\u0161e kroz va\u0161e telo prate\u0107i putovanje crvenog krvnog zrnca kroz srce, plu\u0107a, arterije, kapilare i vene.<\/p>","protected":false},"author":1,"featured_media":523,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[18],"tags":[52,56,53,54,51,55],"class_list":["post-526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-inside-the-human-body","tag-blood-circulation","tag-blood-flow-through-the-body","tag-how-blood-flows-through-the-heart","tag-pulmonary-circulation","tag-red-blood-cell-journey","tag-systemic-circulation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Blood Circulates 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