{"id":50443,"date":"2018-05-16T11:11:24","date_gmt":"2018-05-16T11:11:24","guid":{"rendered":"https:\/\/www.humanitas.net\/?post_type=wiki&#038;p=50443"},"modified":"2018-05-16T11:11:56","modified_gmt":"2018-05-16T11:11:56","slug":"vezica-urinara","status":"publish","type":"wiki","link":"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/vezica-urinara\/","title":{"rendered":"Vezic\u0103 urinar\u0103"},"content":{"rendered":"<p>Vezica urinar\u0103 este un organ al sistemului urinar \u0219i colecteaz\u0103 \u00een sacul muscular expansibil acumularea de urin\u0103 produs\u0103 de rinichi (urina se acumuleaz\u0103 \u00een vezica urinar\u0103 \u0219i vine din uretere). \u00cempreun\u0103 cu uretra formeaz\u0103 tractul urinar inferior. Prime\u0219te dou\u0103 uretere (c\u0103i sau sisteme pentru transportarea urinei de la rinichi la vezic\u0103) \u0219i emite urina prin uretr\u0103. Vezica urinar\u0103 cre\u0219te automat \u00een dimensiune pentru a se acomoda cu cre\u0219terea \u00een volum a urinei produse \u00een corp. Odat\u0103 este vezica este plin\u0103, semnale nervoase sunt trimise la creier pentru a transmite nevoie de a urina.<\/p>\n<h2>Ce este vezica urinar\u0103?<\/h2>\n<p>Vezica urinar\u0103 este organul responsabil pentru colectarea urinei produse de rinichi. Rinichiul este pozi\u021bionat diferit la femei \u0219i b\u0103rba\u021bi. \u00cen anatomia feminin\u0103, se localizeaz\u0103 sub peritoneu, \u00een fa\u021ba uterului, \u00een timp ce la b\u0103rba\u021bi se localizeaz\u0103 deasupra prostatei \u0219i \u00eenainte de rect.<\/p>\n<p>Structura pere\u021bilor vezicii urinare este de aproximativ 0.5 cm grosime \u0219i este format\u0103 din dou\u0103 straturi, unul intern \u0219i unul mucos, care este dotat cu cute ce intr\u0103 \u00een contact direct cu urina, cel\u0103lalt este extern \u0219i format din \u021besuturi musculare netede aranjate \u00een trei straturi (mu\u0219chiul vezicii sau mu\u0219chiul poate produce contrac\u021biile vezicii provoc\u00e2nd scurgerea prematur\u0103 a urinei). Peretele vezicii \u00een care se localizeaz\u0103 ureterele este dotat cu dou\u0103 dispozitive specifice anti-reflux (unul pentru fiecare ureter), care asigur\u0103 faptul c\u0103 urina acumulat\u0103 \u00een vezic\u0103 nu conjug\u0103 \u00een uretere.<\/p>\n<p>Partea inferioar\u0103 a vezicii, colul vezicii, continu\u0103 \u00een uretr\u0103 \u0219i este dotat\u0103 cu sfincterul (sfincterul uretral) care ajusteaz\u0103 deschiderea (\u00een caz de nevoie la urinare) \u0219i \u00eenchiderea (atunci c\u00e2nd nu este necesar\u0103 urinarea).<\/p>\n<p>Rezervorul natural pentru acumularea urinei are forma unei sfere, forma \u0219i dimensiunea vezicii poate varia \u00een func\u021bie de cantitatea de urin\u0103 str\u00e2ns\u0103 \u00een vezic\u0103: \u00een medie, vezica unui adult poate re\u021bine \u00eentre 300 \u0219i 400 mililitri de urin\u0103.<\/p>\n<h2>Ce func\u021bie are vezica urinar\u0103?<\/h2>\n<p>Vezica apar\u021bine tractului urinar \u0219i func\u021bia ei este de a colecta urina \u0219i de a permite eliberarea acesteia \u00een exterior. Exist\u0103 diferite faze care caracterizeaz\u0103 urinarea: faza de umplere a vezicii pe durata \u00een care urina este produs\u0103 de rinichi \u0219i sfincterul uretral este \u00eenchis), capetele ureterelor care se afl\u0103 \u00een peretele vezicii r\u0103m\u00e2n \u00eenchise pe durata contrac\u021biei vezici pentru a \u00eempiedica scurgerea urinei \u00eenapoi \u00een uretere, \u0219i \u00eenapoi \u00een rinichi. Umplerea complet\u0103 a vezicii, adic\u0103 \u00een jur de 300 &#8211; 400 mililitri de urin\u0103 la adul\u021bi reprezint\u0103 faptul sfincterul uretral \u0219i colul vezicii se relaxeaz\u0103 pentru a permite trecerea urinei \u0219i astfel mu\u0219chii vezicii se contract\u0103 permi\u021b\u00e2nd golirea vezicii \u0219i trecerea urinei \u00een uretr\u0103.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"author":11,"featured_media":0,"template":"","wiki-categories":[1691],"wiki-types":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.7.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Vezic\u0103 urinar\u0103 - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/vezica-urinara\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vezic\u0103 urinar\u0103 - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Vezica urinar\u0103 este un organ al sistemului urinar \u0219i colecteaz\u0103 \u00een sacul muscular expansibil acumularea de urin\u0103 produs\u0103 de rinichi (urina se acumuleaz\u0103 \u00een vezica urinar\u0103 \u0219i vine din uretere). \u00cempreun\u0103 cu uretra formeaz\u0103 tractul urinar inferior. 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Prime\u0219te dou\u0103 uretere (c\u0103i sau sisteme pentru transportarea urinei de la rinichi la vezic\u0103) \u0219i emite urina prin [&hellip;]","og_url":"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/vezica-urinara\/","og_site_name":"Humanitas.net","article_publisher":"https:\/\/www.facebook.com\/HumanitasInternational\/","article_modified_time":"2018-05-16T11:11:56+00:00","twitter_card":"summary","twitter_site":"@humanitasmilano","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/vezica-urinara\/","url":"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/vezica-urinara\/","name":"Vezic\u0103 urinar\u0103 - Humanitas.net","isPartOf":{"@id":"https:\/\/www.humanitas.net\/sr\/#website"},"datePublished":"2018-05-16T11:11:24+00:00","dateModified":"2018-05-16T11:11:56+00:00","breadcrumb":{"@id":"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/vezica-urinara\/#breadcrumb"},"inLanguage":"ro","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/vezica-urinara\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.humanitas.net\/ro\/wiki\/anatomie\/vezica-urinara\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.humanitas.net\/ro\/"},{"@type":"ListItem","position":2,"name":"Wikis","item":"https:\/\/www.humanitas.net\/sr\/wiki\/"},{"@type":"ListItem","position":3,"name":"Vezic\u0103 urinar\u0103"}]},{"@type":"WebSite","@id":"https:\/\/www.humanitas.net\/sr\/#website","url":"https:\/\/www.humanitas.net\/sr\/","name":"Humanitas.net","description":"","publisher":{"@id":"https:\/\/www.humanitas.net\/sr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.humanitas.net\/sr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"ro"},{"@type":"Organization","@id":"https:\/\/www.humanitas.net\/sr\/#organization","name":"Humanitas","url":"https:\/\/www.humanitas.net\/sr\/","sameAs":["https:\/\/www.facebook.com\/HumanitasInternational\/","https:\/\/twitter.com\/humanitasmilano"],"logo":{"@type":"ImageObject","inLanguage":"ro","@id":"https:\/\/www.humanitas.net\/sr\/#\/schema\/logo\/image\/","url":"https:\/\/www.humanitas.net\/content\/uploads\/2017\/05\/logo-news-.png","contentUrl":"https:\/\/www.humanitas.net\/content\/uploads\/2017\/05\/logo-news-.png","width":314,"height":61,"caption":"Humanitas"},"image":{"@id":"https:\/\/www.humanitas.net\/sr\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.humanitas.net\/ro\/wp-json\/wp\/v2\/wiki\/50443"}],"collection":[{"href":"https:\/\/www.humanitas.net\/ro\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/www.humanitas.net\/ro\/wp-json\/wp\/v2\/types\/wiki"}],"author":[{"embeddable":true,"href":"https:\/\/www.humanitas.net\/ro\/wp-json\/wp\/v2\/users\/11"}],"version-history":[{"count":0,"href":"https:\/\/www.humanitas.net\/ro\/wp-json\/wp\/v2\/wiki\/50443\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.humanitas.net\/ro\/wp-json\/wp\/v2\/media?parent=50443"}],"wp:term":[{"taxonomy":"wiki-categories","embeddable":true,"href":"https:\/\/www.humanitas.net\/ro\/wp-json\/wp\/v2\/wiki-categories?post=50443"},{"taxonomy":"wiki-types","embeddable":true,"href":"https:\/\/www.humanitas.net\/ro\/wp-json\/wp\/v2\/wiki-types?post=50443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}