Kashin baya, da kuma su ayyuka

mutum kashin baya ne mai matukar hadaddun inji, da daidai aiki na wanda ya dogara a kan aiki na duk gabobin.

A kashin baya ya hada vertebrae 32-33: wuyansa (7 inji mai kwakwalwa.), Dairy (12 inji mai kwakwalwa.), Lumbar (5 inji mai kwakwalwa.), Sacral (5 inji mai kwakwalwa.) Kuma coccygeal (3-4 inji mai kwakwalwa.). Suna located tsakanin vertebrae intervertebral fayafai (23 inji mai kwakwalwa.). Vertebrae sa up da sassa daban daban na kashin baya.

A vertebrae suna shiga zuwa juna jijiya-murdede na'ura, intervertebral fayafai, gidajen abinci. Duk da wannan damar mu rike da kashin baya, a wani mike matsayi da kuma samar da shi tare da zama dole sassauci a motsi. Muhimmi na roba Properties daga cikin intervertebral fayafai aka muhimmanci laushi tunkaro da jerks lokacin tafiya, tsalle da guje, wanda ake daukar kwayar cutar zuwa kwakwalwa da kuma laka.

kashin baya

A kashin baya ne ya tashi daga cikin mahaifa, thoracic, lumbar, sacrum da coccyx.

Mahaifa kashin baya nufin da babba ƙungiyoyin da kashin baya shafi. An bambanta da musamman motsi cewa halitta da 'yanci da kuma iri-iri na shugaban ƙungiyoyi. A babba mahaifa vertebrae, da ake kira atalas da axis, shi ne muhimmi a cikin ilimin Halittar Jiki tsarin, wanda ya bambanta da sauran tsarin da vertebrae. Atlas da axis alhakin karkatar da juya da kai na mutum.

Thorax ne alhakin kirji saliha muhimmanci gabobin, domin wannan dalilin shi ne m. Don shi ne a haɗe gefuna (12 nau'i-nau'i).

A lumbar kashin baya kunshi vertebrae isasshe m, saboda ana hõre mafi girma load. Wasu mutane suna da shida lumbar vertebrae. Irin wannan sabon abu a magani da ake kira lyumbalizatsiey. 8-10 vertebrae girma tare, don samar da wata sacral kashin baya.

A vertebra yana da jiki, wani baka, ƙafãfu biyu, bearded, biyu mai gangara da hudu articular tafiyar matakai. A kashin baya canal aka kafa tsakanin takware na vertebral baka, vertebral jiki da kuma kafafu.

Tsakanin biyu m vertebrae yana da intervertebral Disc, wanda shine annulus fibrosus da kuma tsakiya pulposus. Shi aikin da aiki na depreciation, cire daga m vertebrae, tabbatar da motsi. A tsakiya da aka kewaye a cikin wani fibrous zobe, retaining cikin core a cibiyar, kuma ya hana a zamiya na vertebrae.

A annulus fibrosus kunshi wani jam'i na yadudduka da kuma zaruruwa wanda ake ketare a cikin uku jirage. Lokacin da osteochondrosis anulus zaruruwa suna maye gurbinsu da tabo nama, wanda zai iya, wani lokacin sa katsewa na fibrous zobe da kuma samuwar Disc herniation.

All sassa na kashin baya suna sanye take da ligamentous na'ura. Vertebral kashi - biyu vertebral faifai da jijiyoyin sun hadu.

da laka aka located a cikin kashin baya canal, kazalika da tushen da ake kira "doki ta wutsiya". Laka fara a cikin cerebral yankin da kuma kara zuwa na farko da na biyu lumbar vertebrae.

Laka, mimicking ta hanyar dukan sassa na kashin baya, an kewaye da wani wuya, taushi da kuma arachnoid kuma gyarawa a cikin kashin baya canal, kuma fiber asalinsu.

Branched daga laka jijiya Tushen (31 nau'i-nau'i) cewa su fito daga cikin intervertebral (foraminarnyh) kashin baya canal orifices.

Man, kamar sauran vertabrate yana segmental innervation na jiki, watau, kowane daga cikin segments na laka alhakin wani sashin jiki.

Alal misali, wuyansa da hannuwanku innervate da segments alaka da mahaifa kashin baya, kirji da ciki - a thoracic, sacral kashi innervates ƙafafunsa, perineum, da dubura da kuma mafitsara.

A cikin laka akwai thickening na mahaifa da lumbar. Herniated fayafai a cikin mahaifa kashin baya ne fi hatsari fiye da lumbar.

Daga cikin hanyar da a da yankin lura motility da kuma ji na ƙwarai cuta, likita zai iya ko da yaushe tsammani inda lalacewa faru, da kuma abin da sassa na kashin baya canzawa.