![Radius thiab ulna yog dab tsi? Radius thiab ulna yog dab tsi?](https://i.answers-medical.com/preview/medical-health/14171902-what-is-radius-and-ulna-j.webp)
Video: Radius thiab ulna yog dab tsi?
![Video: Radius thiab ulna yog dab tsi? Video: Radius thiab ulna yog dab tsi?](https://i.ytimg.com/vi/_9-40PVJzO0/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov lub vojvoog los yog radial pob txha yog ib qho ntawm ob lub pob txha loj ntawm lub forearm, lwm qhov yog qhov ua ulna . Nws txuas los ntawm ib sab ntawm lub luj tshib mus rau sab tes ntiv tes xoo ntawm lub dab teg thiab ua haujlwm sib luag rau lub ua ulna . Nws yog cov pob txha ntev, prism-puab thiab me ntsis nkhaus longitudinally.
Ua raws li qhov no hauv kev xav, dab tsi yog lub luag haujlwm ntawm lub vojvoog thiab ulna?
Nws koom nrog cov humerus ntawm nws qhov kawg loj los ua lub luj tshib sib koom, thiab koom nrog cov pob txha carpal ntawm tes ntawm nws qhov kawg me me. Ua ke nrog lub vojvoog , cov ua ulna enables lub dab teg sib txuas kom tig. Cov ua ulna yog 50 feem pua loj hauv txoj kab uas hla tshaj qhov lub vojvoog thaum muaj hnub nyoog 4 txog 5 hli.
Kuj Paub, qhov kawg ntawm ulna hu ua dab tsi? Qhov sib thooj heev kawg ntawm ulna yog olecranon. Lub triceps leeg yog txuas rau nws. Qhov kev kwv yees no yog txheej txheem coronoid. Distal rau nws qhov chaw ntxhib no, lub ulnar tuberosity, cim qhov ntxig ntawm brachialis leeg. Qhov me me nkhaus nto, lub ntsej muag radial, yog qhov uas lub taub hau ntawm lub voos kheej -kheej hais tawm.
Kuj paub, puas lub vojvoog thiab ulna hla?
Cov ua ulna ua ib feem ntawm lub dab teg thiab lub luj tshib pob qij txha. Tshwj xeeb, cov ua ulna koom nrog (hais lus) nrog: trochlea ntawm humerus, ntawm sab laug lub luj tshib raws li pob khawm sib koom ua ke nrog semilunar trochlear thais ntawm ua ulna . cov lub vojvoog , nyob ze lub luj tshib ua pivot sib koom, qhov no tso cai rau lub vojvoog rau ntoo khaub lig dhau ntawm ua ulna hauv pronation.
Cov pob txha twg muaj zog ulna lossis lub vojvoog?
Cov ua ulna yog luv thiab me tshaj qhov lub vojvoog . Cov lub vojvoog yog ib feem ntawm ob lub pob qij txha: lub luj tshib thiab lub dab teg. Ntawm lub luj tshib, nws koom nrog lub capitulum ntawm humerus, thiab nyob rau hauv ib cheeb tsam sib cais, nrog rau ua ulna ntawm radial nqa. Ntawm dab teg, lub lub vojvoog tsim kev sib koom ua ke nrog cov ulna luj.
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