Mmadụ spain, Ọdịdị na arụmọrụ

Human spain, a Ọdịdị nke osobo bụ isi ihe aga-eme nke ndụ bụ ntọala nke aru dum, a support ọkpụkpụ, okpokoro isi, ọtụtụ esịtidem akụkụ, muscle uka na aru abụba. The ibu na spain bụ a ịrịba ama, ma ahụ ibu a na-ekesa evenly, ibu akwuru na ihu obi na na pelvis. N'ihi ya hụrụ nhazi ibu itule.

Key ngalaba

The isi ọkpụkpụ azụ nke mmadụ: na lumbar na sacral, thoracic na cervical. The elu iche, cervical, mejupụtara 7 vertebrae dị iche iche nhazi na size. N'okpuru ebe a bụ 12 iberibe obi, ha bụ ọtụtụ ibu karịa olu na ejikọrọ na ngụgụ. The ọgịrịga òkè-aga n'ime lumbar vertebrae nke ise, aza ajụjụ maka isi ibu. Mgbe ahụ na-abịa sacrum nke ise na-adịghị ejekwa vertebrae.

Ọdịdị nke ahụ n'ọkpụkpụ azụ nwoke bụ kama mgbagwoju anya, multi-akụrụngwa. O nwere a curved udi, nke-enye gị ohere ime ihe kwesịrị ekwesị, nakwa dị ka na-enye dum cushioning Njirimara chọrọ n'ihi na ngwa ngwa na-egbusi mmegharị. mmadụ spain, Ọdịdị nke nke anyị na-atụle ga-abụ otu n'ime ihe ndị kasị multi-ahaziri ozu. Ọ na-amalite na mbụ na nke abụọ vertebra nke cervical kaadị. The mbụ, a na-akpọ "atilasi" mejupụtara nke ọkpụkpụ arches na articulated ozugbo e wezụga okpokoro isi isi. Ịgbaso ya "epistrophe" ikpe gụnyere ke "Atlas". Na nke a ụzọ n'isi mmadụ nwere ike na-agba gburugburu dị iche iche ntụziaka na weturu.

vulnerability

The ike nke vertebrae yiri ka onye ọ bụla ọzọ na udi na naanị dị iche na size. All nke ha na-gburugburu uru nke obi, afo, pelvis na azụ.

mmadụ spain, Ọdịdị nke e mere site a dịgasị iche iche nke atụmatụ na o nwere ime, ọ bụ a na-adịghị ike akụkụ nke ahụ mmadụ. Ọbụna-echebekwa site dịghịzi usoro si awakpo nile di iche iche nke malitere ịrịa nje, ọ na-gụrụ n'ibu okike. Ọbụna ìhè, mgbe ụfọdụ, na-eme obere trauma kpataara si n'èzí nwere ike ịkpaghasị ya arụmọrụ. Ọ bụghị banyere oké trauma na mmebi nke intervertebral nkwonkwo, nke-apụghị izere ezere-agwụ na nkwarụ.

ọgidigi azụ

The vertebrae na-mechie na ọtụtụ usoro site nke ahu na nke a vertebra articulates na n'akụkụ ndị. na ijikọta ụkpụrụ-enye ha ohere ime na a ụfọdụ njupụta. An-agbanwe gasket n'etiti vertebrae bụ discs nke cartilage, ọkpụkpụ na-ebupụta na-enye nkewa. Inside ọkpụkpụ azụ tinyere dum ogologo na-agba ọsọ a pụrụ iche onu-ọwa maka ọgidigi azụ - ndabere nke hematopoietic usoro nke ahu. Ọ bụla mgbanwe nwere ike mpikota onu ụbụrụ ma ọ bụ ọbụna gbuo ya. Human spain, Ọdịdị nke nke bụ n'ụzọ zuru okè na okwu nke arụmọrụ, ma mma si mebiri. Ya mere, i kwesịrị izere overloading na traumatic mmegharị.