{"id":80941,"date":"2018-05-04T13:20:44","date_gmt":"2018-05-04T13:20:44","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/usta\/"},"modified":"2018-05-04T13:20:44","modified_gmt":"2018-05-04T13:20:44","slug":"usta","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/sr\/wiki\/usta\/","title":{"rendered":"Usta"},"content":{"rendered":"<h2 id=\"sta-su-usta\">\u0160ta su usta?<\/h2>\n<p>Termin \u201custa\u201d odnosi se na otvor digestivnog trakta, ali i na usnu duplju u koju se tim otvorom ulazi. Ona ima potporu u vidu ko\u0161tanog luka sa\u010dinjenog od gornje vilice (maksile) i donje vilice (mandibule), i u svakoj od njih se nalaze zubi. Usne predstavljaju prelaz ko\u017ee koja prekriva gotovo \u010ditavo telo u mukoznu membranu.<\/p>\n<p>&nbsp;<\/p>\n<p>Primarna uloga usta jeste \u0161to ona predstavljaju po\u010detni deo digestivnog trakta, a tako\u0111e imaju ulogu u formiranju glasova \u00a0i u respiraciji. I dok je primarni aspekt glasa proizveden u grlu, usta, zubi, jezik i vilice su od su\u0161tinskog zna\u010daja za proizvodnju fonema koje se koriste u ljudskom sporazumevanju. Usta predstavljaju i po\u010detni deo disgestivnog trakta u koji se unosi hrana i u kome se lu\u010di pljuva\u010dka. Smatra se najbitnijim faktorom za odre\u0111ivanje ukusa i lu\u010di se u pljuva\u010dnim \u017elezdama usne duplje.<\/p>\n<p>&nbsp;<\/p>\n<p>Usta se mogu posmatrati sa razli\u010ditih strukturnih ta\u010dka gledi\u0161ta. Ako se posmatraju sa vrha prema dnu, sastoje se od gornje usne, gingive gornje vilice, gornjih zuba, nepca (tvrdo u prednjem delu, meko u pozadini), resice, dva krajnika, jezika, donjih zuba, desni donje vilice i donje usne. Ukoliko se posmatra iz frontalno\/posteriorne perspektive sastoji se iz usana, potom zuba i desnih, jezika i krajnika, iznad kojih je nepce (tvrdo i meko) i resice.<\/p>\n<p>&nbsp;<\/p>\n<p>Naj\u010de\u0161\u0107i problemi vezani za usnu duplju su ranice, bolne desni, afte i lo\u0161 zadah, i oni se javljaju iz razli\u010ditih razloga, me\u0111u kojima su bakterije i virusi; me\u0111utim, mogu se javiti i kao simptomi nekih ozbiljnijih stanja poput raka usne duplje ili bolesti desni. Od su\u0161tinske je va\u017enosti potra\u017eiti lekarsku pomo\u0107 ukoliko se ovi simptomi pojave kako bi se uspostavila dijagnoza, odredilo pravilno le\u010denje. U nekim slu\u010dajevima mo\u017ee do\u0107i do pojave komplikacija, ali uspostavljanje prave dijagnoze mo\u017ee pomo\u0107i u spre\u010davanju pogor\u0161avanja simptoma.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"koju-ulogu-imaju-usta\">Koju ulogu imaju usta?<\/h2>\n<p>Usta imaju nekoliko funkcija me\u0111u kojima su:<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Respiratorna funkcija: preko usta vazduh dopier do grkljana, bronhija i dalje do plu\u0107a izbegavaju\u0107i prepreku nosnih \u0161upljlina. Ovaj proces se obavlja iako vazduh udahnut na ovaj na\u010din ne prolazi kroz tretman vla\u017eenja, \u010di\u0161\u0107enja i grejanja, kao \u0161to je to slu\u010daj kad prolazi kroz nos.<\/li>\n<li>Digestivna funkcija: usta su mesto ulaska hrane, gde se ona \u017evakanjem i pljuva\u010dkom priprema i dalje prosle\u0111uje u \u017eeludac kako bi se lak\u0161e svarila. Komadanje hrane vr\u0161i se pomo\u0107u zuba, i delovanjem enzima i pljuva\u010dke. Tako obra\u0111ena hrana je delimi\u010dno svarena pre nego \u0161to se gutanjem prosledi u ostale delove digestivnog trakta.<\/li>\n<li>Uloga u \u010dulu ukusa: usta predstavljaju receptor ukusa. Gustativne papile su male kvr\u017eice na gornjoj strani jezika, gornjem delu jednjaka, unutra\u0161njoj strani obraza, mekom nepcu i na epiglotisu. One detektuju vrstu ukusa: slano, slatko, kiselo, gorko.<\/li>\n<li>Uloga u formiranju glasova: usta se pona\u0161aju kao rezonantna kutija za izradu glasova na osnovu glasa koji se emituje iz grkljana. Drugim re\u010dima, ona poma\u017eu u stvaranju glasova ljudskog jezika.<\/li>\n<\/ul>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1789],"class_list":["post-80941","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>Usta - 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=\"Usta - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"\u0160ta su usta? Termin \u201custa\u201d odnosi se na otvor digestivnog trakta, ali i na usnu duplju u koju se tim otvorom ulazi. 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