Dareemayaasha spinal

dareemayaasha lafdhabarta metamernoraspolozhennye yihiin, dogob dareemayaasha aadeen. Tirada dareemayaasha spinal, ama halkii, lammaane ay u dhigantaa tirada lammaane oo qaybaha ah laf-dhabarta iyo waa loo siman yahay si kow iyo soddon, siddeed nooc oo ka mid ah dareemayaasha ku dhaca dhuunta ilmogalenka, iyo toban lammaane oo thoracic, shan lumbar, shan saliibiyiinta iyo mid ka mid ah labada nin ee dareemayaasha coccygeal. Iyadoo ay gargaar, laf-dhabarta lafaguraa gobolka iyo qabata jir control, miskaha, addimada iyo xubnaha gudaha oo ka mid ah godadka caloosha iyo thoracic.

In asal dareemayaasha spinal ay la xiriira ka qayb gaar ah oo jidhka ah, oo la innervated horumariyo ka qayb gaar ah oo somite maqaarka - dermatosis soo jeeda of myotome - muruqyada sclerotome - lafaha. dareemayaasha kasta oo billaabay ka "shakhsiga" oo ka mid ah kabsanayo intervertebral, ku xira waxaa la aasaasay ka mid ah jirrid hore (motor) iyo (xasaasi ah) gadaal xididdada.

dareemayaasha laf-gaaraan dherer ah qeybtii centimitir oo kaliya, ka dib oo dhan laan ay si la mid ah gadaal iyo laanta qolof hore.

laanta Rear kordhiyay dhexeeya araxda iyo habka transverse ah labada nin u soo halkaas oo innervation kordhinaya muruqyada qoto dheer (jir unbend) iyo maqaarka. dareemayaasha lafdhabarta laamaha dambena dib ugu soo laabto inta u dhaxaysa araxda lateral gaar ahaan inta u dhaxaysa geedi socodka iyo albaaka geedi socodka articular ay. Marka laga reebo afka ilmo-galeenka hore iyo afaraad, dibka shanaad oo dabanicis, araxda kala qaybsan yihiin medialis ramus iyo lateralis, taas oo waxaa la siiyaa dusha danbe ee maqaarka qoorta iyo dhabarka, qoorta, muruqyada dib u qoto dheer.

Intaa waxaa dheer ee dareemayaasha spinal kordhiyo xataa laba laamood xira - in jirridda u dabacsanaadaan , (waayo, innervation marinnada dhiigga iyo viscera) iyo laanta laabtay - socday kabsanayo, (waayo, innervation xangulada).

Plexus dareemayaasha spinal laamaha jilibka diyaarin hab adag oo innervate muruqyada cover maqaar iyo derbiga ventral ee jirridda iyo labada lammaane oo addimada. Tan iyo markii uu maqaarka caloosha hoose ayaa si firfircoon uga qayb dhismaha ka mid ah xubnaha taranka, maqaarka in daboolo, laamaha jilibka iyo sidoo innervated. Marka laga reebo labada ugu horreeya, laanta la soo dhaafay of xaggiisa dambe aad u balaaran.

Plexus laamaha dareemayaasha spinal jilibka in ay qaab-dhismeedka Meto dhinac-cabbir ah ee asalka ah waxaa lagu kaydiyaa kaliya ee gobolka thoracic. In kale qaybo ka, taas oo ku xiran yihiin la addinka (horumarinta kuwaas oo uu lumo segmental) kordhin ka spinal jilibka laamo isku maran macdantaa. Sidaas darteed, waxaa jira formation of a plexus dareemeyaasha (plexus), iyo meesha ay ka jirto isku waydaartaan macdantaa kala duwan nevromerov. In plexuses, kuwaas oo tiro badan oo ah dareemeyaasha laf-dhabarka waa qayb hab aad u adag taas oo ay jirto qaybin ah macdantaa: dareemayaasha durugsan laga soo qaatay hore ee laan kasta oo ka mid ah macdantaa dareemaha laf-dhabarka, taas oo macnaheedu yahay in dareemayaasha kasta durugsan waxaa ku jira macdantaa laga qaybaha badan ah ee laf dhabarta.

Plexus kala duwanaayeen galay saddex nooc: lumbosacral, garabka iyo afka ilmo-galeenka. Lumbosacral, markeeda kala qaybsanyihiin coccygeal, sacral iyo lumbar.

Laga soo bilaabo kor ku xusan waxaa lagu soo gabagabeeyey karaa in khasaaraha ama waxyeelada soo gaara dareen sidaha qaarkood ma wuxu xadgudub ku ah shaqeynayaan oo dhan muruqyada hela innervation ah qaybaha in dawadda dareemayaasha this. dareemayaasha laf-ka plexus ku kordhin, waxaa la qaso, ku dheehan hannaanka dhaawaca dareemayaasha ka kooban xanuunada dareenka, xanuunada autonomic, iyo sidoo kale cudurada dhaqdhaqaaqa.