Tus Axis (C2 vertebra) tseem hu ua epistropheus tsim cov pivot uas yog thawj lub ncauj tsev menyuam vertebra (tus Atlas), uas nqa lub taub hau, tig. Lub axis yog tsim los ntawm lub cev vertebral, hnyav pedicles, laminae, thiab transverse txheej txheem, uas ua hauj lwm raws li cov ntsiab lus txuas rau cov leeg.
Puas C1 thiab C2 puas muaj lub cev vertebral?
Atypical Vertebrae : C1 thiab C2 C1 thiab C2 raug suav hais tias yog atypical vertebrae vim tias lawv muaj qee qhov txawv piv rau lwm tus ntawm lub ncauj tsev menyuam qaum. C1 Vertebra (lub atlas). Sab saum toj vertebra, hu ua atlas, yog tib lub ncauj tsev menyuam vertebra tsis muaj lub cev vertebral.
C2 vertebral lub cev yog dab tsi?
Tus axis yog lub ncauj tsev menyuam thib ob , feem ntau hu ua C2. Nws yog atypical cervical vertebra nrog cov yam ntxwv tshwj xeeb thiab kev sib raug zoo tseem ceeb uas ua rau nws pom tau yooj yim. Nws qhov tseem ceeb tshaj plaws yog cov txheej txheem odontoid (lossis qhov dens), uas yog embryologically lub cev ntawm atlas (C1) 1, 2.
Puas C1 puas muaj lub cev vertebral?
Lub atlas (C1) yog lub sab saum toj tshaj plaws vertebra, thiab nrog rau cov axis tsim cov kev sib koom ua ke txuas rau pob txha taub hau thiab qaum. Nws tsis muaj lub cev vertebral, txheej txheem spinous, thiab discs zoo dua lossis qis dua rau nws. Nws yog lub nplhaib zoo li lub nplhaib thiab muaj ib qho anterior arch, posterior arch, thiab ob lateral masses.
Txoj hauj lwm twg tso siab tshaj plaws ntawm tus txha nraub qaum?
Thaum peb lub nraub qaum nyob hauv nws txoj haujlwm zoo, nrog peb sawv ntsug lossis pw tiaj tus, peb tau tso qhov tsawg kawg nkaus ntawm qhov siab ntawm cov discs ntawm vertebrae. Thaum peb zaum thiab ua rau lub nraub qaum nkhaus, peb ntxiv ze li 50 feem pua siab ntau rau cov discs li thaum peb sawv.
