{"id":80888,"date":"2018-05-03T08:22:00","date_gmt":"2018-05-03T08:22:00","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/nadbubrezne-zlezde\/"},"modified":"2018-05-03T08:22:00","modified_gmt":"2018-05-03T08:22:00","slug":"nadbubrezne-zlezde","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/sr\/wiki\/nadbubrezne-zlezde\/","title":{"rendered":"Nadbubre\u017ene \u017elezde"},"content":{"rendered":"<h2 id=\"sta-su-nadbubrezne-zlezde\">\u0160ta su nadbubre\u017ene \u017elezde?<\/h2>\n<p>Nadbubre\u017ene \u017elezde su dve male \u017elezde koje se nalaze na gornjim polovinama bubrega. Obe nadbubre\u017ene \u017elezde duga\u010dke su oko 5 a \u0161iroke oko 2,5 cm. Ove \u017elezde su trouglastog oblika \u017eu\u0107kasto-braon boje, i te\u0161ke su oko 5 grama.<\/p>\n<p>&nbsp;<\/p>\n<p>Desna nadbubre\u017ena \u017elezda nalazi se neposredno pored donje \u0161uplje vene. Donja \u0161uplja vena je vena koja prenosi krv iz nogu i trbu\u0161ne \u0161upljine nazad u srce. Desna nadbubre\u017ena \u017elezda obi\u010dno ima jednu nadbubre\u017enu venu koja se uliva direktno u nju. Leva nadbubre\u017ena \u017elezda nalazi se neposredno uz aortu. Aorta je najve\u0107a arterija u ljudskom telu koja je zadu\u017eena za prenos krvi iz srca u ostale delove tela. Uz levu nadbubre\u017enu \u017elezdu nalaze se i debelo crevo, \u017eeludac i slezina. Leva nadbubre\u017ena \u017elezda tako\u0111e ima jednu nadbubre\u017enu venu koja se uliva direktno u bubre\u017enu venu. I leva i desna nadbubre\u017ena \u017elezda dobijaju krv iz bezbroj manjih i ve\u0107ih krvnih sudova koji dolaze iz dijafragme, krvnih sudova bubrega i aorte.<\/p>\n<p>&nbsp;<\/p>\n<p>Nadbubre\u017ene \u017elezde sastoje iz dva razli\u010dita sloja &#8211; korteksa i medule. Korteks, odnosno kora nadbubre\u017ene \u017elezde sastoji se od tri odvojena sloja tkiva. Svaki od ovih slojeva specijalizovan je za proizvodnju jedne vrste hormonalnih steroida. Glomerularni sloj je povr\u0161inski sloj kore nadbubre\u017ene \u017elezde, i u njemu se proizvode aldotestosteron i drugi hormoni poput minerlokortikoida. Mineralokortikoidi igraju klju\u010dnu ulogu u regulisanju odnosa soli i vode u ljudskom telu. Sredi\u0161nji sloj kore nadbubre\u017ene \u017elezde zadu\u017een je za proizvodnju kortizona, kortizola i kortikosterona. Kortikosteron vrsta je ugljenog hidrata koji slu\u017ei kao zamena aktivnog glukokortikoida. Ova tri hormona neophodna su za uspostavljanje i odr\u017eavanje normalne funkcije metabolizma i podsticanje rada imunolo\u0161kog sistema. Mre\u017easti sloj kore nadbubre\u017ene \u017elezde nalazi se na unutra\u0161njoj strani kore, i u njemu se vr\u0161i proizvodnja polnih hormona, i to najvi\u0161e androgena. U ovom sloju tako\u0111e se proizvode i progesteron i estrogen.<\/p>\n<p>&nbsp;<\/p>\n<p>Medula, odnosno sr\u017e nadbubre\u017ene \u017elezde, nalazi se u unutra\u0161njosti ove \u017elezde i okru\u017eena je korom. Sr\u017e nadbubre\u017ene \u017elezde sa\u010dinjena je od nepravilnih \u0107elijskih nizova koji proizvode dve razli\u010dite vrste neurotransmitera &#8211; adrenalin i noradrenalin. Ova dva hormona imaju sli\u010dno dejstvo kao simpati\u010dki nervni sistem, i lu\u010de se u toku fizi\u010dke aktivnosti i stresnim situacijama. Ovi hormoni podsti\u010du br\u017ei rad srca, pove\u0107avaju krvni pritisak, \u0161ire zenice, itd. Lu\u010denje hormona u sr\u017ei nadbubre\u017ene \u017elezde kontroli\u0161e hormon \u0161titne \u017elezde koji se naziva ACTH.<\/p>\n<p>&nbsp;<\/p>\n<p>U koliko se u \u017elezdama proizvodi manje ili vi\u0161e hormona nego \u0161to je neophodno za normalno funkcionisanje tela mo\u017ee do\u0107i do pojave mnogobrojnih bolesti. Insuficijencija nadbubre\u017ene \u017elezde javlja se kada se unutar \u017elezde ne proizvodi dovoljno hormona. Ova bolest mo\u017ee imati smrtan ishod ukoliko se ne le\u010di na vreme. U slu\u010dajevima kada se u nadbubre\u017enoj \u017elezdi lu\u010di prevelika koli\u010dina hormona, mo\u017ee do\u0107i do pojave Ku\u0161ingovog sindroma (povi\u0161enog nivoa kortizola), primarnog hiperaldosteronizma (povi\u0161enog nivoa aldosterona), kao i paraganglioma (povi\u0161enog nivoa adrenalina u krvi). Kod svih prethodno navedenih bolesti neophodno je ustanoviti ta\u010dnu dijagnozu kako bi se na vreme zapo\u010delo sa le\u010denjem i izbeglo stvaranje posledica opasnih po zdravlje pacijenta.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"koja-je-funkcija-nadbubreznih-zlezda\">Koja je funkcija nadbubre\u017enih \u017elezda?<\/h2>\n<p>U nadbubre\u017enim \u017elezdama lu\u010de se hormoni koji omogu\u0107avaju normalno funkcionisanje organizma. Endokrine lu\u010devine koje poti\u010du iz ove \u017elezde ispu\u0161taju se direktno u krvotok. Sa druge strane, kod egzokrinog lu\u010denja hormoni se ispu\u0161taju u telesne \u0161upljine ili se izbacuju iz tela, kao \u0161to je to slu\u010daj sa \u017eeluda\u010dnim sokovima.<\/p>\n<p>&nbsp;<\/p>\n<p>Nadbubre\u017ene \u017elezde proizvode hormone bez kojih telo ne mo\u017ee normalno da funkcioni\u0161e.<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1789],"class_list":["post-80888","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>Nadbubre\u017ene \u017elezde - 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=\"Nadbubre\u017ene \u017elezde - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"\u0160ta su nadbubre\u017ene \u017elezde? Nadbubre\u017ene \u017elezde su dve male \u017elezde koje se nalaze na gornjim polovinama bubrega. Obe nadbubre\u017ene \u017elezde duga\u010dke su oko 5 a \u0161iroke oko 2,5 cm. Ove \u017elezde su trouglastog oblika \u017eu\u0107kasto-braon boje, i te\u0161ke su oko 5 grama. &nbsp; Desna nadbubre\u017ena \u017elezda nalazi se neposredno pored donje \u0161uplje vene. 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Nadbubre\u017ene \u017elezde su dve male \u017elezde koje se nalaze na gornjim polovinama bubrega. Obe nadbubre\u017ene \u017elezde duga\u010dke su oko 5 a \u0161iroke oko 2,5 cm. Ove \u017elezde su trouglastog oblika \u017eu\u0107kasto-braon boje, i te\u0161ke su oko 5 grama. &nbsp; Desna nadbubre\u017ena \u017elezda nalazi se neposredno pored donje \u0161uplje vene. 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