Dab tsi yog qhov txawv ntawm Cancellous thiab Cortical pob txha

Cov txheej txheem:

Dab tsi yog qhov txawv ntawm Cancellous thiab Cortical pob txha
Dab tsi yog qhov txawv ntawm Cancellous thiab Cortical pob txha

Video: Dab tsi yog qhov txawv ntawm Cancellous thiab Cortical pob txha

Video: Dab tsi yog qhov txawv ntawm Cancellous thiab Cortical pob txha
Video: Qhov Sib Txawv Ntawm Allergy, Flu & Coronavirus Yog Dab Tsi 2024, Hlis ntuj nqeg
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Qhov sib txawv tseem ceeb ntawm cov pob txha pob txha thiab cov pob txha cortical yog cov pob txha pob txha tsim qhov kawg lossis epiphyses ntawm cov pob txha ntev thaum cov pob txha cortical tsim cov ncej lossis diaphysis ntawm cov pob txha ntev.

Tib neeg lub cev pob txha yog tsim los ntawm 206 pob txha. Tag nrho cov pob txha feem ntau muab faib ua ob pawg: cov pob txha tshem tawm thiab cov pob txha cortical. Tawm ntawm ob hom pob txha no, cov pob txha cortical ua rau feem ntau ntawm cov pob txha pob txha (txog 80%), thaum tus so yog cov pob txha tshem tawm.

pob txha rho tawm yog dab tsi?

Cov pob txha tshem tawm yog lub teeb, pob txha pob txha uas kaw qhov chaw loj, ua rau lawv muaj qhov zoo nkauj lossis zoo nkauj. Nws tseem hu ua trabecular lossis spongy pob txha. Lub matrix ntawm cov pob txha yog tsim nyob rau hauv peb-dimensional lattice ntawm cov txheej txheem pob txha hu ua trabeculae. Lawv npaj raws cov kab kev ntxhov siab thiab pab tiv thaiv kev ntxhov siab. Qhov chaw nyob nruab nrab muaj cov hlab ntsha thiab cov hlab ntsha. Kwv yees li 20 feem pua ntawm tib neeg lub cev pob txha yog ua los ntawm cov pob txha tshem tawm.

Cancellous thiab Cortical pob txha - Ib sab ntawm sab piv
Cancellous thiab Cortical pob txha - Ib sab ntawm sab piv

Cov pob txha rho tawm muab kev txhawb nqa thiab hloov pauv. Lawv muaj nyob rau hauv qhov loj ntawm cov pob txha ntev thiab yog ib qho tseem ceeb ntawm cov tav, cov pob txha tiaj tus ntawm pob txha taub hau, lub xub pwg hniav, thiab luv, cov pob txha tiaj tus nyob rau lwm qhov ntawm lub pob txha. Lub plhaub ntawm cov pob txha pob txha nyob ib puag ncig cov pob txha pob txha. Qhov no muab lub zog thiab rigidity. Cov pob txha Cancellous loj hlob mus rau hauv cov pob txha pob txha los ntawm cov pob txha tsim cov hlwb hu ua osteoblasts. Tag nrho cov pob txha ntev txhim kho zoo li no hauv lub embryo. Osteoblasts tso cov pob txha matrix nyob ib ncig ntawm lub trabeculae hauv txheej. Qhov no nthuav qhov chaw nruab nrab ntawm lawv. Qhov chaw tom qab ntawd ploj mus, thiab cov pob txha tsis paub tab yog tsim. Qhov sib txawv ntawm qhov chaw rau cov pob txha muaj nyob rau hauv ntau cov pob txha, nyob ntawm seb lub zog thiab qhov yooj yim ntawm cov pob txha xav tau. Cov pob txha Cancellous muaj cov haujlwm metabolic siab heev. Cov pob txha pob txha ntawm cov pob txha pob txha ua rau cov ntshav liab corpuscles thiab dawb granular corpuscles. Tab sis cov pob txha cortical tsis muaj pob txha kab noj hniav.

Cov pob txha Cortical yog dab tsi?

Cortical pob txha yog cov pob txha uas tsim cov txheej txheem tiv thaiv ib puag ncig hauv kab noj hniav. Cov pob txha cortical ua rau yuav luag 80% ntawm cov leeg pob txha. Cov pob txha cortical muaj kev tiv thaiv siab rau khoov thiab torsion; yog li ntawd lawv muaj peev xwm ris lub cev hnyav. Cortical pob txha feem ntau ua rau cov kab mob xws li osteoporosis. Tsis tas li ntawd, kev raug mob rau cov pob txha cortical hauv qaum, caj npab, thiab txhais ceg tuaj yeem ua rau muaj kev cuam tshuam loj heev.

Cancellous vs Cortical pob txha nyob rau hauv daim ntawv Tabular
Cancellous vs Cortical pob txha nyob rau hauv daim ntawv Tabular

Lub luag haujlwm tseem ceeb ntawm cov pob txha cortical yog muab lub zog thiab kev tiv thaiv rau lwm cov pob txha. Cov pob txha cortical yog tus du nyob rau hauv kev sib piv rau cov pob txha pob txha, thiab nws yog xim dawb. Cov qauv ntawm cov pob txha cortical muaj ntau txheej. Feem ntau sab nraud ntawm cov pob txha cortical yog lub periosteum, uas yog ob txheej txheej. Cov txheej no tiv thaiv cov hlab ntsha thiab cov hlab ntsha uas khiav los ntawm cov pob txha cortical. Cov txheej sab hauv ntawm lub periosteum muaj osteoblasts, uas ua ke cov pob txha matrix. Cov pob txha cortical muaj cov kab mob pob txha hauv qhov chaw, uas khaws cov rog.

Dab tsi zoo sib xws ntawm Cov Pob Txha thiab Cortical Pob Txha?

  • Cov pob txha pob txha thiab pob txha cortical yog ob hom pob txha muaj nyob hauv tib neeg lub cev.
  • Lawv muaj cov pob txha pob txha.
  • Ntxiv mus, lawv muab cov qauv nruj rau lub cev.
  • ob pob txha muaj pob txha.
  • Ob leeg tshem tawm thiab cov pob txha cortical pab hauv kev txav mus los thiab hloov pauv ntawm lub cev.

Qhov txawv ntawm Cancellous thiab Cortical pob txha yog dab tsi?

Cov pob txha tshem tawm ua qhov kawg lossis epiphyses ntawm cov pob txha ntev, thaum cov pob txha cortical tsim cov ncej lossis diaphysis ntawm cov pob txha ntev. Qhov no yog qhov sib txawv tseem ceeb ntawm cov pob txha cortical. Cov pob txha tshem tawm yog tsim los ntawm trabeculae, thaum cov pob txha cortical yog tsim los ntawm osteons. Ntxiv mus, cov pob txha pob txha ntawm cov pob txha tshem tawm ua rau cov ntshav liab corpuscles thiab dawb granular corpuscles, thaum cov pob txha ntawm cov pob txha cortical khaws rog.

Cov lus hauv qab no qhia txog qhov sib txawv ntawm cov pob txha tshem tawm thiab cortical.

Summary – Cancellous vs Cortical Bone

Tib neeg lub cev pob txha muaj 206 cov pob txha categorized ua ob pawg: cov pob txha tshem tawm thiab cov pob txha cortical. Cov pob txha Cancellous tsim qhov kawg lossis epiphyses ntawm cov pob txha ntev, thaum cov pob txha cortical tsim cov ncej lossis diaphysis ntawm cov pob txha ntev. Cov pob txha Cancellous yog ib lub teeb, cov pob txha ntxeem tau uas npog qhov chaw loj thiab muaj qhov xwm txheej lossis qhov tsos. Lawv muab cov qauv kev txhawb nqa thiab hloov tau yooj yim. Cortical pob txha yog cov pob txha uas tsim ib txheej tiv thaiv nyob ib ncig ntawm cov kab noj hniav. Cortical pob txha tsim yuav luag 80% ntawm cov pob txha pob txha. Cov pob txha cortical muaj kev ua haujlwm siab rau khoov thiab torsion, yog li pab txhawb nqa qhov hnyav ntawm lub cev. Qhov no qhia txog qhov sib txawv ntawm cov pob txha cortical.

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