{"id":80910,"date":"2018-05-04T12:17:48","date_gmt":"2018-05-04T12:17:48","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/leva-srcana-komora\/"},"modified":"2018-05-04T12:17:48","modified_gmt":"2018-05-04T12:17:48","slug":"leva-srcana-komora","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/sr\/wiki\/leva-srcana-komora\/","title":{"rendered":"Leva sr\u010dana komora"},"content":{"rendered":"<h2 id=\"sta-je-leva-srcana-komora\">\u0160ta je leva sr\u010dana komora?<\/h2>\n<p>Leva sr\u010dana komora jedna je od \u010detiri komore koje se nalaze u srcu. Leva komora nalazi se u levom delu srca ispod leve pretkomore, od koje je odvojena mitralnim zalistkom. Leva komora odgovorna je za istiskivanje krvi oboga\u0107ene kiseonikom kroz aortni zalistak u aortni luk. Nakon \u0161to sve\u017ea krv oboga\u0107ena kiseonikom pro\u0111e kroz aortu, prenosi se do ostalih delova tela kako bi opskrbila \u0107elije, tkiva i ograne kiseonikom i nutrijentima.<\/p>\n<p>&nbsp;<\/p>\n<p>Srce je najva\u017eniji organ u ljudskom telu i sastoji se od nekoliko razli\u010ditih delova. Ovakva segmentiranost srca omogu\u0107ava br\u017ee i efikasnije pumpanje krvi oboga\u0107ene kiseonikom u ostale delove tela (\u0107elije, tkiva i organe) i primanje deoksigenizirane krvi koja sadr\u017ei ugljen dioksid kako bi se ona prosledila dalje u plu\u0107a gde se odvija razmena kiseonika.<\/p>\n<p>&nbsp;<\/p>\n<p>Leva i desna komora su donji delovi srca koji zajedno \u010dine glavni deo ovog organa. Sr\u010dane komore nalaze se iza grudne kosti i naslonjene su na dijagragmu. Leva sr\u010dana komora za nijansu je duguljastija od desne komore i nalazi se iza sternuma. Najve\u0107i deo sternuma naslonjen je na dijafragmu, te je samo jedan deo leve komore u direktnom kontaktu sa dijafragmom. Oblik leve komore najsli\u010dniji je kupi \u010diji se vrh nalazi uz sam vrh srca. Leva komora odvojena je od leve pretkomore interventrikularnim septumom. Izme\u0111u leve komore i leve pretkomore postoji veza koja se naziva mitralna \u0161upljina. Protok krvi izme\u0111u leve komore i leve pretkomore kroz mitralnu \u0161upljinu reguli\u0161e mitralni, odnosno bikuspidalni zalistak. Bikuspidalni zalistak sastoji se od dva suprotstavljena pokretna poklopca razli\u010ditih veli\u010dina. Izme\u0111u leve sr\u010dane komore i aorte nalazi se jo\u0161 jedan otvor, odnosno \u0161upljina. Ova \u0161upljina naziva se arterijski ostijum, i u njoj se nalaze jo\u0161 tri zaliska.<\/p>\n<p>&nbsp;<\/p>\n<p>Neke od bolesti koje se naj\u010de\u0161\u0107e javljaju na levoj sr\u010danoj komori su leva ventrikularna hipertrofija i leva ventrikularna kardiomiopatija.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Leva ventrikularna hipertrofija: oboljenje je koje dovodi do uve\u0107anja i zadebljanja mi\u0161i\u0107nog tkiva od koga je sa\u010dinjena leva sr\u010dana komora. Naj\u010de\u0161\u0107e se javlja kao posledica povi\u0161enog krvnog pritiska<\/li>\n<li>Leva ventrikularna kardiomiopatija: retko sr\u010dano oboljenje koje dovodi do smanjivanja rastegljivosti i pove\u0107anja rigidnosti zidova leve sr\u010dane komore. Mi\u0161i\u0107na tkiva od kojih je sa\u010dinjena komora postaju sun\u0111erasti, \u0161to onemogu\u0107ava normalno punjenje ove \u0161upljine.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2 id=\"koja-je-funkcija-leve-srcane-komore\">Koja je funkcija leve sr\u010dane komore?<\/h2>\n<p>Srce je najva\u017eniji organ u ljudskom telu i sastoji se od nekoliko razli\u010ditih delova. Ovakva segmentiranost srca omogu\u0107ava br\u017ee i efikasnije pumpanje krvi oboga\u0107ene kiseonikom u ostale delove tela (\u0107elije, tkiva i organe) i primanje deoksigenizirane krvi koja sadr\u017ei ugljen dioksid kako bi se ona prosledila dalje u plu\u0107a gde se odvija razmena kiseonika. Srce se sastoji od dve komore i dve pretkomore. Pretkomore su dve manje gornje komore srce koje su fizi\u010dki odvojene jedna od druge komornim septumom.<\/p>\n<p>&nbsp;<\/p>\n<p>Zidovi leve sr\u010dane komore su 3 do 6 puta deblji od zidova desne komore. Leva sr\u010dana komora zbog toga ima znatno manji kapacitet nego desna komora. Ova pojava karakteristi\u010dna je i za aorte &#8211; za razliku od plu\u0107ne arterije, aorta ima dosta manji kapacitet ali mo\u017ee da pru\u017ea ve\u0107i otpor i pumpa krv kroz telo ve\u0107om silom. Pritisak krvi koji ulazi u levu sr\u010danu komoru iznosi 8 mmHg, dok se iz nje krv ispumpava pod pritiskom od 120 mmHg. Kod zdravih osoba, desna komora miruje tokom faze dijastole, kada primaju krv oboga\u0107enu kiseonikom iz leve komore. Za vreme sistole, komore se kontrakuju i ispumpavaju krv u aortu.<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1789],"class_list":["post-80910","enciclopedia","type-enciclopedia","status-publish","hentry","enciclopedia_category-anatomija"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Leva sr\u010dana komora - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"sr_RS\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Leva sr\u010dana komora - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"\u0160ta je leva sr\u010dana komora? Leva sr\u010dana komora jedna je od \u010detiri komore koje se nalaze u srcu. Leva komora nalazi se u levom delu srca ispod leve pretkomore, od koje je odvojena mitralnim zalistkom. Leva komora odgovorna je za istiskivanje krvi oboga\u0107ene kiseonikom kroz aortni zalistak u aortni luk. 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Leva sr\u010dana komora jedna je od \u010detiri komore koje se nalaze u srcu. Leva komora nalazi se u levom delu srca ispod leve pretkomore, od koje je odvojena mitralnim zalistkom. Leva komora odgovorna je za istiskivanje krvi oboga\u0107ene kiseonikom kroz aortni zalistak u aortni luk. 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