![Puas yog lub sacrum yog pob txha tob lossis tsis zoo? Puas yog lub sacrum yog pob txha tob lossis tsis zoo?](https://i.answers-medical.com/preview/medical-health/13853050-is-the-sacrum-a-deep-or-superficial-bone-j.webp)
Video: Puas yog lub sacrum yog pob txha tob lossis tsis zoo?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Dorsal nto ntawm sacrum yog convex thiab muaj qhov tsis xwm yeem uas suav nrog nruab nrab, nruab nrab, thiab ib sab sacral crests sawv cev rau fused spinous, articular, thiab transverse txheej txheem, feem. Dorsal sacroiliac ligaments tau muab faib ua tob (luv) thiab sab nrauv (ntev) qhov.
Ua qhov no hauv kev txiav txim siab, yam pob txha twg yog sacrum?
Cov sacrum yog ib leeg xwb pob txha suav nrog tsib qhov sib txawv vertebrae uas fuse thaum neeg laus. Nws tsim lub hauv paus ntawm sab nraub qaum thiab lub plab. Cov sacrum yog sphenoid concave pob txha uas zaum hauv qab ntawm tus txha nqaj qaum.
Ib sab saum toj, dab tsi qis dua rau lub sacrum? Cov sacrum yog ib lub voos xwmfab loj loj ua rau ntawm vertebra qis dua kawg ntawm tus txha nqaj qaum. Nws tsim cov hauv paus ruaj khov ntawm tus txha nqaj qaum uas nws cuam tshuam nrog cov pob txha hauv siab kom tsim lub plab hlaub. Cov sacrum yog pob txha muaj zog heev uas txhawb nqa qhov hnyav ntawm lub cev sab saud vim nws kis thoob plaws lub plab thiab hauv ob txhais ceg.
Yooj yim li, puas yog coccyx ib feem ntawm lub sacrum?
Cov sacrum , qee zaum hu ua sacral tus txha nqaj qaum (sau luv S1), yog cov pob txha loj, tiaj tus duab plaub uas nyob hauv qab L5 thiab nyob nruab nrab ntawm koj cov pob txha. Hauv qab no sacrum yog coccyx , feem ntau hu ua pob txha . Cov sacrum yog tsim los ntawm 5 fuse vertebrae, thiab 3 txog 5 pob txha me me fuse los tsim coccyx.
Thaum muaj hnub nyoog li cas sacrum fuse?
Qhov chaw/Kev hais lus Nws sab qaum txuas nrog lub lumbar vertebra kawg; hauv qab, nrog coccyx (tailbone). Hauv cov menyuam yaus, nws suav nrog feem ntau tsib leeg tsis siv lub cev pob txha uas pib fuse nruab nrab hnub nyoog 16 thiab 18 thiab feem ntau yog sib xyaw ua ke rau hauv ib pob txha thaum muaj hnub nyoog 26.
Pom zoo:
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Hyaline pob txha mos
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Cov nqaij ntshiv lub cev los ntawm kev cog lus tawm tsam cov pob txha. Thaum cov leeg mob, lawv tau luv. Los ntawm kev cog lus, cov leeg rub ntawm cov pob txha thiab cia lub cev txav mus los
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Cov pob txha Cancellous yog tsim los ntawm spongy, ntxeem tau, cov pob txha cov ntaub so ntswg uas muaj cov pob txha liab thiab tseem ceeb heev rau kev tsim cov qe ntshav. Spongy pob txha yog softer thiab tsis muaj zog tshaj cov pob txha compact, tab sis kuj hloov tau ntau dua