{"id":80936,"date":"2018-05-04T13:03:53","date_gmt":"2018-05-04T13:03:53","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/bladder-2\/"},"modified":"2018-05-04T13:03:53","modified_gmt":"2018-05-04T13:03:53","slug":"bladder-2","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/sr\/wiki\/bladder-2\/","title":{"rendered":"Bladder"},"content":{"rendered":"<h2 id=\"mokracna-besika\">Mokra\u0107na be\u0161ika<\/h2>\n<p>&nbsp;<\/p>\n<p>Mokrac\u0301na be\u0161ica predstavlja\u00a0 organ\u00a0 urinarnog sistema, te\u00a0 predstavlja rezervoar mokra\u0107e unutar rastegljive mi\u0161i\u0107ne strukture.<\/p>\n<p>U njoj se skladi\u0161ti mokra\u0107a koju produkuju bubrezi (urin se akumulira unutar mokra\u0107ne be\u0161ike i evakui\u0161e putem uretre). Zajedno sa uretom \u010dine donji urinanri trakt.<\/p>\n<p>Prima dva uretera (duktuse radi transporta urina ka bubezima i mokra\u0107noj be\u0161ici) putem kojih se urin evakui\u0161e u spolja\u0161nju sredinu preko uretre. Moka\u0107na be\u0161ika se refleksno\u00a0 pove\u0107ava u veli\u010dini u cilju akomodacije\u00a0 radi pove\u0107anog volumena urina u organizmu.<\/p>\n<p>&nbsp;<\/p>\n<p>Kada je mokra\u0107na be\u0161ika prepunjena nastaju nervni impulsi koji \u0161alju informacije ka mozgu.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"sta-predstavlja-mokracna-besika\">\u0160ta predstavlja mokra\u0107na be\u0161ika ?<\/h2>\n<p>&nbsp;<\/p>\n<p>Mokra\u0107na be\u0161ika predstavlja organ odgovoran za prikupljanje urina nastalog u bubrezima.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Bubrezi su\u00a0 polo\u017eeni razli\u010dito\u00a0 polo\u017eeni kod osoba mu\u0161kog i \u017eenskog pola. Kod \u017eena anatomska lokalizacija mokra\u0107ne be\u0161ike je ispod peritoneuma, a ispred uterusa, dok je kod mu\u0161karaca\u00a0 lokalizovana iznad prostate, a ispred rektuma.<\/p>\n<p>&nbsp;<\/p>\n<p>Struktua zida mokra\u0107ne be\u0161ike debljine je 0.5 cm i sa\u010dinjena je od dva omota\u010da, jednog unutra\u0161njeg, mukoznog koji \u010dine ragade u direktnom kontaktu sa urinom, dok je spolja\u0161nji omota\u010d gra\u0111en od glatkoh mi\u0161i\u0107nog tkiva u tri sloja (mi\u0161i\u0107 mokra\u0107ne be\u0161ike ili ekstruzor i mi\u0161i\u0107 koji produkuje kontrakcije mokra\u0107ne be\u0161ike uz mogu\u0107u prevremenu mikciju). Zid mokra\u0107ne be\u0161ike u kome su sadr\u017eani ureteri, gra\u0111en je od dva specifi\u010dna anti-refluksna mehanizma (za po svaki ureter) koji omogu\u0107avaju da se urin akumulira u mokra\u0107noj be\u0161ici bez zadr\u017eavanja u ureterima.<\/p>\n<p>&nbsp;<\/p>\n<p>Ni\u017ee partije mokra\u0107ne be\u0161ike, vrat mokra\u0107ne be\u0161ike, nastavlja se uretrom i sadr\u017ei sfinkter (uretralni sfinkter) koji omogu\u0107ava otvaranje (u lsu\u010daju potebe za mokrenjem) i zatvaranje (kada nije potrebno mokriti).<\/p>\n<p>&nbsp;<\/p>\n<p>Prirodni rezervoar urina naj\u010de\u0161\u0107e je oblika sfere, dok veli\u010dina i oblik ponekad mogu varirati u zavisnosti od koli\u010dine mokra\u0107e sadr\u017eane u mokra\u0107noj be\u0161ici: u proseku odrasla osoba mo\u017ee deponovati oko 300 do 400 mililitara urina.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"koja-je-funkcija-mokracne-besike\">Koja je funkcija mokra\u0107ne be\u0161ike ?<\/h2>\n<p>&nbsp;<\/p>\n<p>Mokra\u0107na be\u0161ika priapda urinarnom traktu. Osnovna funkcija joj da akumulira mokra\u0107u radi dalje evakuacije u spolja\u0161nju sredinu.<\/p>\n<p>Postoji nekoliko razli\u010ditih stadijuma\u00a0 kaakteristi\u010dnih za mikciju: faza punjenja mokra\u0107ne be\u0161ike, tokom koje se mokra\u0107a produkuje u bubrrezima tesprovodi u mokra\u0107u be\u0161iku i uretere (u ovoj fazi vrat mokra\u0107ne be\u0161ike i uretralnog sfinktera su zatvoreni), krajevi uretera koji se nalaze u mokra\u0107noj be\u0161ici tj. njenom zidu su zatvoreni tokom kontrakcije mokra\u0107ne be\u0161ike radi prevencije regurgitacije urina ka ureteru i bubrezima.<\/p>\n<p>&nbsp;<\/p>\n<p>Kompletni sadr\u017eaj mokra\u0107ne be\u0161ike procenjuje se na otprilike 300-400 milimetara urina kod odraslih, \u0161to zna\u010di da je vat mokra\u0107ne be\u0161ike i uetralni sfinkter relaksiran te omogu\u0107ava prolaz urina i kontrakciju mi\u0161i\u0107a mokra\u0107ne be\u0161ike radi pra\u017enjenja iste i prolaska urina kroz uretru.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1789],"class_list":["post-80936","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>Bladder - 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=\"Bladder - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Mokra\u0107na be\u0161ika &nbsp; Mokrac\u0301na be\u0161ica predstavlja\u00a0 organ\u00a0 urinarnog sistema, te\u00a0 predstavlja rezervoar mokra\u0107e unutar rastegljive mi\u0161i\u0107ne strukture. 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