{"id":81161,"date":"2018-05-15T10:28:01","date_gmt":"2018-05-15T10:28:01","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/incheietura-mainii\/"},"modified":"2018-05-15T10:28:01","modified_gmt":"2018-05-15T10:28:01","slug":"incheietura-mainii","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/incheietura-mainii\/","title":{"rendered":"\u00cencheietura m\u00e2inii"},"content":{"rendered":"<h2 id=\"ce-este-incheietura-mainii\">Ce este \u00eencheietura m\u00e2inii?<\/h2>\n<p>\u00cencheietura m\u00e2inii este o articula\u021bie complex\u0103, care leag\u0103 oasele antebra\u021bului de cele ale m\u00e2inii. Ea permite flexarea \u0219i mi\u0219c\u0103ri de extensie ale m\u00e2inii. Dac\u0103 \u00eencheietura m\u00e2inii este utilizat\u0103 prea mult prin mi\u0219c\u0103ri repetitive, se poate ajunge la deteriorarea sau chiar la limitarea posibilit\u0103\u021bilor de mi\u0219care.<\/p>\n<p>&nbsp;<\/p>\n<p>\u00cencheietura m\u00e2inii este format\u0103 din oase prinse \u00eempreun\u0103 de ligamente, \u0219i din mu\u0219chii \u0219i nervii asocia\u021bi care permit mobilitatea. Structura \u00eens\u0103\u0219i este alc\u0103tuit\u0103 din cubitus \u0219i radius (dou\u0103 oase ale antebra\u021bului) \u0219i osul scafoid \u0219i osul semilunar (dou\u0103 oase carpiene). \u00cen plus, exist\u0103 \u0219i alte \u0219ase oase carpiene, care se formeaz\u0103 \u00een dou\u0103 r\u00e2nduri. R\u00e2ndul proxim (cel mai apropiat de \u00eencheietura m\u00e2inii) este format din osul piramidal \u0219i din osul pisiform, \u00een timp ce r\u00e2ndul distal (cel mai \u00eendep\u0103rtat de \u00eencheietura m\u00e2inii) este format din osul trapez, osul trapezoid, osul capitat \u0219i osul c\u00e2rlig. Navicularul traverseaz\u0103, \u00een schimb, ambele r\u00e2nduri. Fiecare dintre aceste oase este conectat la cele mai vecin\u0103tate prin intermediul unuia sau a mai multor ligamente. Printre acestea, cele mai mari sunt ligamentul colateral ulnar (ligament medial) \u0219i ligamentul colateral radial (ligament lateral), respectiv care leag\u0103 osul cubitus de oasele piramidal \u0219i pisiform \u0219i osul radius la osul scafoid.<\/p>\n<p>&nbsp;<\/p>\n<p>Mu\u0219chii care sunt utiliza\u021bi pentru a muta \u00eencheietura m\u00e2inii sunt situa\u021bi \u00een antebra\u021b. Ace\u0219tia includ mu\u0219chiul lung extensor radial al carpului (ECRL), mu\u0219chiul scurt extensor radial al carpului (ECRB), mu\u0219chiul extensor al degetelor (ED), mu\u0219chiul extensor al degetului mic (EDM), mu\u0219chiul extensor ulnar al carpului (ECU), mu\u0219chiul abductor lung al policelui EPB), mu\u0219chiul extensor lung al policelui (EPL), \u0219i mu\u0219chiul extensor al indexului (EI). Un singur tendon le conecteaz\u0103 la m\u00e2na care se mi\u0219c\u0103 \u00een interiorul \u00eencheieturii m\u00e2inii. \u00cen cele din urm\u0103, trei nervi care provin de la antebra\u021b traverseaz\u0103 \u00eencheietura m\u00e2inii, pentru a ajunge la palm\u0103. Ace\u0219tia includ nervul radial, care inerveaz\u0103 partea din spate a m\u00e2inii \u00een zona dintre degetul mare \u0219i degetul mijlociu; nervul median, care este \u00eemp\u0103r\u021bit \u00een patru benzi, pentru a inerva degetul mare \u0219i urm\u0103toarele trei degete mai mari; \u0219i nervul ulnar, care inerveaz\u0103 degetul mic \u0219i jum\u0103tatea exterioar\u0103 a inelarului.<\/p>\n<p>&nbsp;<\/p>\n<p>Afec\u021biunile frecvente asociate cu \u00eencheietura m\u00e2inii includ sindromul de tunel carpian \u0219i osteoartrita. Sindromul de tunel carpian se refer\u0103 la o afec\u021biune care provoac\u0103 durere, amor\u021beal\u0103 \u0219i furnic\u0103turi la nivelul \u00eencheieturii m\u00e2inii. Osteoartrita este o afec\u021biune care provoac\u0103 distrugerea articular\u0103, din cauza modific\u0103rilor degenerative ale cartilajului \u0219i oaselor. \u00cen ambele cazuri, controlul medical este esen\u021bial pentru a determina cea mai adecvat\u0103 form\u0103 de tratament \u0219i pentru a preveni agravarea simptomelor.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"ce-functie-indeplineste-incheietura-mainii\">Ce func\u021bie \u00eendepline\u0219te \u00eencheietura m\u00e2inii?<\/h2>\n<p>\u00cencheietura m\u00e2inii conecteaz\u0103 antebra\u021bul \u0219i m\u00e2na, permi\u021b\u00e2nd la r\u00e2ndul s\u0103u o gam\u0103 larg\u0103 de mi\u0219c\u0103ri. \u00cen mod special, extensorii \u00eencheieturii permit ridicarea \u0219i rotirea m\u00e2inii. De asemenea, \u00eencheietura m\u00e2inii permite alte mi\u0219c\u0103ri, \u00een special \u00een abaterea ulnar\u0103 (care implic\u0103 extensorul ulnar \u0219i mu\u0219chiul flexor ulnar al carpului), permi\u021b\u00e2nd ca m\u00e2na s\u0103 fie rotit\u0103 spre exterior; devia\u021bia radial\u0103, care permite scrierea \u0219i mu\u0219chiul flexor radial al carpului \u0219i cei radiali scur\u021bi\/lungi, care \u00eei permit m\u00e2inii s\u0103 se roteasc\u0103 spre interior.<\/p>\n<p>&nbsp;<\/p>\n<p>Anatomia \u00eencheieturii m\u00e2inii este extrem de complex\u0103, iar grupul de oase \u0219i articula\u021bii implicate permite folosirea m\u00e2inilor \u00een multe moduri diferite. \u00cencheietura m\u00e2inii trebuie s\u0103 fie extrem de mobil\u0103, pentru a oferi m\u00e2inilor o gam\u0103 complet\u0103 de mi\u0219c\u0103ri \u0219i, \u00een acela\u0219i timp, s\u0103 ofere o rezisten\u021b\u0103 sporit\u0103, pentru apucare \u0219i ridicare de greut\u0103\u021bi.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1792],"class_list":["post-81161","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>\u00cencheietura m\u00e2inii - 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=\"\u00cencheietura m\u00e2inii - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Ce este \u00eencheietura m\u00e2inii? \u00cencheietura m\u00e2inii este o articula\u021bie complex\u0103, care leag\u0103 oasele antebra\u021bului de cele ale m\u00e2inii. Ea permite flexarea \u0219i mi\u0219c\u0103ri de extensie ale m\u00e2inii. 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