Video: Dab tsi yog txoj haujlwm ntawm Odontoid txheej txheem?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov txheej txheem odontoid muab lub ntsiab lus pivot - hu ua axis ntawm cov lus tsa suab - ib puag ncig uas pob txha taub hau thiab thawj lub ncauj tsev menyuam nqaj qaum (daim ntawv) tig, ntswj thiab/lossis tig (cov no yog txhua yam zoo ib yam.)
Ib yam li ntawd, nws tau nug, dab tsi yog qhov ua haujlwm ntawm lub qhov?
Nws yog cov txheej txheem tsis zoo li cov txheej txheem uas ua haujlwm nce mus. Nws tseem hu ua ' qhov chaw ' (Latin rau ' hniav') los yog odontoid txheej txheem. Cov qhov chaw muab ib hom pivot thiab dab tshis tso cai rau lub taub hau thiab daim ntawv tig mus ncig qhov chaw.
Qhov thib ob, Odontoid fossa yog dab tsi? Teb: cov odontoid txheej txheem yog ib tug protuberance ntawm lub axis nyob rau tom qab ntawm lub caj dab thiab nquag txuas mus rau nws lateral nto yog ib tug ntiav zawj rau lub transverse ligament ntawm lub atlas uas khaws cov txheej txheem nyob rau hauv txoj hauj lwm.
Kuj paub yog, dab tsi vertebra muaj cov txheej txheem Odontoid?
Cov txheej txheem odontoid (tseem dens los yog odontoid peg) yog ib tug protuberance ( txheej txheem lossis qhov projection) ntawm Axis (lub ncauj tsev menyuam thib ob qaum ). Nws nthuav tawm me ntsis constriction los yog caj dab, qhov twg nws koom nrog lub ntsiab ntawm lub cev qaum.
Puas yog dens anterior lossis posterior?
Sab hauv Cheebtsam ntawm lub axis yog tsim los ntawm: dens : conical hauv cov duab, ua haujlwm los ntawm lub cev, du tom qab nto. superior articular facets, slopes down ntawm lub cev zoo li lub xub pwg nyom, extends tshaj pedicles thiab lateral masses. inferior articular facets, ntsej muag anteroinferiorly zoo li cervical vertebra.
Pom zoo:
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