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Video: Cov pob txha twg tso cai rau nws loj hlob?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov phaj epiphyseal yog thaj tsam ntawm kev loj hlob hauv ntev pob txha . Nws yog txheej txheej ntawm pob txha mos hyaline qhov twg ossification tshwm sim thaum tsis paub tab pob txha . Ntawm sab epiphyseal ntawm phaj epiphyseal, cov pob txha mos tau tsim. Nyob rau sab diaphyseal, pob txha mos yog ossified, tso cai diaphysis rau loj hlob nyob ntev
Ib yam nkaus, cov pob txha loj hlob thiab txhim kho li cas?
Pob txha Kev loj hlob Cov pob txha loj tuaj nyob rau qhov ntev ntawm lub phaj epiphyseal los ntawm cov txheej txheem uas zoo ib yam li endochondral ossification. Cov pob txha mos nyob rau hauv thaj tsam ntawm lub epiphyseal phaj ntawm ib sab ntawm lub epiphysis tseem mus loj hlob los ntawm mitosis. Osteoblasts txav mus rau hauv thiab ossify lub matrix tsim pob txha.
dab tsi yog loj hlob kawg ntawm pob txha? Lawv loj hlob feem ntau los ntawm kev nthuav dav ntawm diaphysis, nrog rau epiphysis ntawm txhua tus kawg ntawm loj hlob pob txha . Cov xaus ntawm epiphyses tau npog nrog pob txha mos hyaline ("pob txha pob txha pob txha"). Lub longitudinal kev loj hlob ntev pob txha Nws yog tshwm sim los ntawm endochondral ossification ntawm lub epiphyseal phaj.
Tsis tas li nug, hom pob txha loj hlob yog lub luag haujlwm rau qhov nce ntawm txoj kab uas hla ntawm cov pob txha?
Appositional kev loj hlob yog nce hauv txoj kab uas hla ntawm cov pob txha los ntawm qhov ntxiv ntawm pob txha cov ntaub so ntswg pob txha . Pob txha kev kho dua tshiab cuam tshuam nrog cov txheej txheem ntawm pob txha kev tso tawm los ntawm osteoblasts thiab pob txha resorption los ntawm osteoclasts. Pob txha kev kho tau tshwm sim hauv plaub theem thiab tuaj yeem siv sijhawm ntau lub hlis.
Cov pob txha loj hlob li cas thiab txhim kho kev sib tshuam sib cuam tshuam nrog Appositional kev loj hlob li cas?
Interstitial kev loj hlob tshwm sim nyob rau hauv hyaline pob txha mos ntawm epiphyseal phaj, nce ntev ntawm loj hlob pob txha . Kev loj hlob zoo tshwm sim ntawm qhov chaw endosteal thiab periosteal, nce qhov dav ntawm cov pob txha loj hlob . Kev loj hlob ntawm sab nruab nrab tsuas yog tshwm sim ntev li hyaline yog tam sim no, tsis tuaj yeem tshwm sim tom qab epiphyseal phaj kaw.
Pom zoo:
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