{"id":81215,"date":"2018-05-16T11:08:45","date_gmt":"2018-05-16T11:08:45","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/trunchi-cerebral\/"},"modified":"2018-05-16T11:08:45","modified_gmt":"2018-05-16T11:08:45","slug":"trunchi-cerebral","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/trunchi-cerebral\/","title":{"rendered":"Trunchi cerebral"},"content":{"rendered":"<p>Trunchiul cerebral este structura localizat\u0103 la baza creierului care \u00eel pune \u00een direct\u0103 continuitate cu m\u0103duva spin\u0103rii, conecteaz\u0103 creierul cu m\u0103duva spin\u0103rii. \u00cen\u0103untru, multe structuri nervoase importante, celule nervoase \u0219i fibre sunt concentrate, care sunt localizate ad\u00e2nc \u00een p\u0103r\u021bile superioare ale trunchiului cerebral. R\u0103nile, chiar \u0219i cele mici, pot avea consecin\u021be grave, deoarece acest sistem controleaz\u0103 nivelul de cuno\u0219tin\u021b\u0103 \u0219i vigilen\u021b\u0103 al corpului. Pacien\u021bii pot suferi traumatisme, cancer, atacuri cerebrale, infec\u021bii \u0219i demielinizare \u0219i unele persoane pot experimenta pierderea func\u021bionalit\u0103\u021bii, care sunt echivalente cu afectarea creierului \u0219i cauzarea mor\u021bii, totu\u0219i dac\u0103 trunchiul cerebral r\u0103m\u00e2ne intact, corpul poate r\u0103m\u00e2ne viu, chiar \u0219i c\u00e2nd exist\u0103 afectarea sever\u0103 a creierului, care pot s\u0103 fac\u0103 g\u00e2ndirea \u0219i mi\u0219carea imposibil\u0103.<\/p>\n<h2 id=\"ce-este-trunchiul-cerebral\">Ce este trunchiul cerebral?<\/h2>\n<p>Trunchiul cerebral este un tip de sta\u021bie de la mesajele pleac\u0103 \u0219i vin c\u0103tre creier, este structura care leag\u0103 pe cel din urm\u0103 direct de m\u0103duva spin\u0103rii \u0219i regleaz\u0103 automat func\u021biile critice ale corpului. Se \u00eemparte \u00een trei p\u0103r\u021bi principale, mezencefal, puntea lui Varolio \u0219i medulla oblongata, care \u00eempreun\u0103 permit controlarea func\u021biilor vitale ale corpului, cum ar fi respira\u021bia, \u00eenghi\u021birea, func\u021biile vasomotorii, tensiunea arterial\u0103, ritmul inimii \u0219i ajut\u0103 la ajustarea pozi\u021biei corpului.<\/p>\n<p>Toate c\u0103ile nervoase de la creier trec prin trunchiul cerebral, \u00een multe cazuri intersect\u00e2ndu-se \u00een interiorul trunchiului cerebral. 10 din 12 perechi de nervi cranieni, \u00ee\u0219i au originea \u00een trunchiul cerebral, totu\u0219i, acest lucru exclude doar pe acelea asociate cu sim\u021burile de miros \u0219i vedere. Altele ofer\u0103 motilitate \u0219i abilit\u0103\u021bi senzoriale structurilor creierului, inclusiv mu\u0219chii faciali, limba, faringe \u0219i laringe. Acestea sunt responsabile pentru sim\u021burile gustului \u0219i echilibrul auzului.<\/p>\n<p>Nucleii trunchiului cerebral sunt importan\u021bi pentru func\u021biile autonome parasimpatice \u0219i simpatice ale corpului.<\/p>\n<h2 id=\"ce-functie-are-trunchiul-cerebral\">Ce func\u021bie are trunchiul cerebral?<\/h2>\n<p>Exist\u0103 trei func\u021bii principale ale trunchiului cerebral, prima este c\u0103 joac\u0103 un rol \u00een conducere. Acest lucru \u00eenseamn\u0103 c\u0103 toate informa\u021biile care sunt transmise de la corp la creier \u0219i cerebel (c\u00e2t \u0219i viceversa) trebuie s\u0103 traverseze trunchiul cerebral. C\u0103ile ascendente care vin din corp c\u0103tre creier sunt c\u0103ile senzoriale. Acestea includ tractul spinotalamic (responsabil pentru senza\u021biile de durere \u0219i temperatur\u0103), coloana dorsal\u0103,\u00a0 tractul lui Goll, senza\u021bia de presiune, tractul lui Burdeach pentru atingere \u0219i propriocep\u021bie.<\/p>\n<p>Trunchiul cerebral este responsabil pentru func\u021biile de aten\u021bie, vigilen\u021b\u0103, \u00eenc\u00e2ntare, respira\u021bie, b\u0103t\u0103ile inimii, tensiune arterial\u0103 \u0219i regleaz\u0103 aceste func\u021bii. Cu abilitatea de a transmite informa\u021bia la creier \u0219i de a distribui semnale de la nervii periferice \u0219i m\u0103duva spin\u0103rii, acesta controleaz\u0103 \u0219i alte func\u021bii involuntare din corpul uman, cum ar fi digestia, salivarea, transpira\u021bia, dilatarea sau contrac\u021bia pupilelor \u0219i urinarea.<\/p>\n<p>Partea inferioar\u0103 a trunchiului cerebral este responsabil\u0103 pentru reglarea func\u021biilor autonome vitale, \u00een timp ce partea superioar\u0103 a creierul controleaz\u0103 vederea \u0219i auzul, vigilen\u021ba, con\u0219tiin\u021ba \u0219i somnul. \u00cen special, mezencefalul controleaz\u0103 mi\u0219c\u0103rile ochilor \u0219i puntea coordoneaz\u0103 mi\u0219c\u0103rile ochilor \u0219i fe\u021bei \u0219i controleaz\u0103 senza\u021biile percepute de fa\u021b\u0103, auz \u0219i echilibru. Medulla oblongata controleaz\u0103 func\u021biile respira\u021biei, tensiunii arteriale, ritmul inimii \u0219i \u00eenghi\u021birea.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1792],"class_list":["post-81215","enciclopedia","type-enciclopedia","status-publish","hentry","enciclopedia_category-anatomie"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Trunchi cerebral - 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=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Trunchi cerebral - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Trunchiul cerebral este structura localizat\u0103 la baza creierului care \u00eel pune \u00een direct\u0103 continuitate cu m\u0103duva spin\u0103rii, conecteaz\u0103 creierul cu m\u0103duva spin\u0103rii. \u00cen\u0103untru, multe structuri nervoase importante, celule nervoase \u0219i fibre sunt concentrate, care sunt localizate ad\u00e2nc \u00een p\u0103r\u021bile superioare ale trunchiului cerebral. 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