{"id":81174,"date":"2018-05-16T09:53:12","date_gmt":"2018-05-16T09:53:12","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/testiculele\/"},"modified":"2018-05-16T09:53:12","modified_gmt":"2018-05-16T09:53:12","slug":"testiculele","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/testiculele\/","title":{"rendered":"Testiculele"},"content":{"rendered":"<p>Testiculele (sau gonadele masculine) reprezint\u0103 cele dou\u0103 glande sexuale masculine. \u00cen timpul dezvolt\u0103rii fetale, acestea sunt situate \u00een abdomen \u0219i, de obicei, coboar\u0103 \u00een scrot (sacul care le con\u021bine) chiar \u00eenainte de na\u0219tere. Glandele sexuale masculine nu au \u00eentotdeauna aceea\u0219i dimensiune pe tot parcursul vie\u021bii: ele sunt mici \u00een timpul copil\u0103riei, cresc \u00een volum \u00een timpul pubert\u0103\u021bii p\u00e2n\u0103 la atingerea maturit\u0103\u021bii sexuale, suferind apoi un regres \u00een v\u00e2rst\u0103 fiziologic\u0103 t\u00e2rzie.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"ce-sunt-testiculele\">Ce sunt testiculele?<\/h2>\n<p>Testiculele au o form\u0103 de ou, cu o textura ferm\u0103, \u0219i reprezint\u0103 glandele sexuale masculine. Odat\u0103 ce ajung la maturitatea sexual\u0103, ating o dimensiune de aproximativ 4-5 cm lungime, l\u0103\u021bime de aproximativ 4 cm \u0219i o grosime de aproximativ 2,3 cm; \u00een plus, ele c\u00e2nt\u0103resc aproximativ 20 de grame fiecare. De\u0219i par destul de simetrice, \u00een general, testiculul st\u00e2ng este plasat mai jos dec\u00e2t cel drept.<\/p>\n<p>&nbsp;<\/p>\n<p>Fiecare testicul este acoperit de straturi rigide, fibroase, adic\u0103 un \u021besut cunoscut sub numele de tunic\u0103. Stratul exterior este denumit tunica vaginal\u0103, \u00een timp ce stratul interior se nume\u0219te tunica albuginee.<\/p>\n<p>&nbsp;<\/p>\n<p>Fiecare testicul este divizat intern \u00een lobuli (aproximativ 250 \u00een fiecare testicul), care con\u021bin tuburile seminifere, \u00een interiorul c\u0103rora se produc spermatozoizi (spermatogenez\u0103). Tuburile seminifere sunt ini\u021bial r\u0103sucite (tubule convolute), dar apoi au o conforma\u021bie rectilinie (tubule rectilinii) \u0219i se prelungesc \u00eempreun\u0103 \u00een re\u021beaua testicular\u0103 (sau &#8220;rete testis&#8221;), format\u0103 de canale de amplitudine variabil\u0103. De la \u00eenceputul re\u021belei testiculare, exist\u0103 canale eferente care ajung la epididim (organ mic, aflat \u00een marginea din partea de sus posterioar\u0103 a testiculului), sec\u021biunea conductelor de spermatozoizi situate \u00eentre canalele eferente ale rete testis \u0219i vas deferens (transportul secundar al materialului seminal).<\/p>\n<p>&nbsp;<\/p>\n<p>\u00cen spa\u021biul care se formeaz\u0103 \u00eentre tuburile convolute, se afl\u0103 grupuri de celule compacte, care formeaz\u0103 glanda intersti\u021bial\u0103 Leydig. Nervii care inerveaz\u0103 testiculele provin din plexul spermatic. Vasele de s\u00e2nge sunt numite vase spermatice.<\/p>\n<p>&nbsp;<\/p>\n<p>\u00cen plus, fiecare testicul este \u021binut \u00een scrot prin cordoane spermatice. Cordoanele spermatice sunt compuse din \u021besut conjunctiv \u0219i mu\u0219chi. Acestea con\u021bin, de asemenea, vas deferens, vase de s\u00e2nge, ganglioni limfatici \u0219i nervi. Fluidul limfatic curge prin vasele care se afl\u0103 \u00een cordonul spermatic \u0219i se scurge din testicule \u00een mai multe grupe de ganglioni limfatici. Ace\u0219tia sunt denumi\u021bi ganglioni limfatici retroperitoneali.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"ce-rol-indeplinesc-testiculele\">Ce rol \u00eendeplinesc testiculele?<\/h2>\n<p>Exist\u0103 dou\u0103 func\u021bii ale testiculelor \u00eencep\u00e2nd cu pubertatea: o func\u021bie endocrin\u0103 \u0219i una exocrin\u0103. Func\u021bia exocrin\u0103 const\u0103 \u00een spermatogenez\u0103 sau produc\u021bia de sperm\u0103 necesar\u0103 reproducerii. Totu\u0219i, acest proces poate fi efectuat \u0219i de un singur testicul.<\/p>\n<p>&nbsp;<\/p>\n<p>Func\u021bia endocrin\u0103 const\u0103 \u00een secre\u021bia testosteronului: prezen\u021ba acestui hormon la b\u0103rba\u021bi este indispensabil\u0103, pentru inducerea spermatogenezei, pentru dezvoltarea a\u0219a-numitelor caracteristici sexuale secundare (cre\u0219terea masei musculare, sc\u0103derea tonul vocii, cre\u0219terea p\u0103rului pe corp).<\/p>\n<p>&nbsp;<\/p>\n<p>Func\u021bia exocrin\u0103, sau procesul de producere a spermei, \u00eencepe \u00een celulele germinative, care se afl\u0103 \u00een tuburile seminifere. Celulele germinate mai t\u00e2rziu se matureaz\u0103 \u00een celulele spermei. Pe de alt\u0103 parte, func\u021bia endocrin\u0103, sau producerea de hormoni (testosteron), se realizeaz\u0103 cu ajutorul celulelor stromale, care ac\u021bioneaz\u0103 ca celule de sus\u021binere \u00een testicul.<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1792],"class_list":["post-81174","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>Testiculele - 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=\"Testiculele - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Testiculele (sau gonadele masculine) reprezint\u0103 cele dou\u0103 glande sexuale masculine. \u00cen timpul dezvolt\u0103rii fetale, acestea sunt situate \u00een abdomen \u0219i, de obicei, coboar\u0103 \u00een scrot (sacul care le con\u021bine) chiar \u00eenainte de na\u0219tere. 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