![Sacral plexus tsim tau li cas? Sacral plexus tsim tau li cas?](https://i.answers-medical.com/preview/medical-health/14003301-how-is-sacral-plexus-formed-j.webp)
Video: Sacral plexus tsim tau li cas?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov sacral plexus yog ib lub network ntawm cov hlab ntsha uas muab cov tawv nqaij thiab cov leeg ntawm lub plab thiab qis qis. Nws nyob ntawm qhov chaw ntawm phab ntsa tom qab lub plab, ua ntej rau cov leeg piriformis. Cov plexus yog tsim los ntawm anterior rami (divisions) ntawm lub sacral tus txha nqaj qaum S1, S2, S3 thiab S4.
Tib neeg kuj nug, lub lumbar plexus tau tsim los li cas?
Cov lumbar plexus yog lub paj hlwb (nervous plexus ) hauv lumbar thaj tsam ntawm lub cev uas tsim ib feem ntawm qhov loj lumbosacral plexus . Nws yog tsim los ntawm kev sib faib ntawm thawj plaub lumbar qab haus huv (L1-L4) thiab los ntawm kev koom tes ntawm cov hlab ntsha subcostal (T12), uas yog lub paj hlwb thoracic kawg.
Ib yam nkaus, dab tsi yog txoj haujlwm ntawm lub paj hlwb? Cov hlab ntsha uas ua haujlwm ib yam ntawm lub cev sib koom ua ke rau hauv ib qho hlab ntsha loj lossis pab pawg ntawm cov hlab ntsha ntawm lub plexus. Lub sacral plexus muab lub cev muaj zog thiab lub paj hlwb ua rau lub plab, pob tw, qhov chaw mos, ncej puab, plab hlaub, thiab taw. Nws yog ib qho ntawm tsib lub plexuses loj ntawm lub cev. Nws nyob ntawm cov leeg piriformis, hauv thaj chaw duav.
Yooj yim li ntawd, dab tsi tshwm sim los ntawm sacral plexus?
sciatic paj
Lub hauv paus sacral paj nyob qhov twg?
Cov Sacral Plexus. Cov sacral plexus yog lub network ntawm paj hlwb fibers uas muab cov tawv nqaij thiab cov leeg ntawm lub plab mog thiab qis qis. Nws yog nyob ntawm qhov chaw ntawm phab ntsa hauv qab plab, sab xub ntiag rau cov leeg piriformis.
Pom zoo:
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Lub ntsej muag ntawm lub ntsej muag feem ntau koom ua ke nrog cov ceg ntoo hauv ntej ntawm cov hlab ntshav retromandibular los tsim cov leeg leeg ntawm lub ntsej muag, uas hla cov hlab ntsha sab nrauv carotid thiab nkag mus rau sab hauv cov hlab ntshav ntawm qhov sib txawv hauv qab cov pob txha hyoid
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Hauv kev tsim cov embryo, dermatomes tshwm sim los ntawm somitic mesoderm, uas tsim los ntawm nruab nrab txheej ntawm cov ntaub so ntswg embryonic ib sab mus rau txoj hlab neural tsim. Dermatomes tau teeb tsa nrog cov qauv ntu ntu hauv lub cev pob txha, txawm hais tias qee qhov sib tshooj tshwm sim nrog thaj chaw zoo sib xws saum toj thiab hauv qab
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