Yuav yog dab tsi ankylosis? Hom ossification twg yog ua tiav thaum cov phaj epiphyseal raug kaw tag? Yuav ua li cas koj piv cov pob txha endochondral loj hlob thiab appositional pob txha loj hlob? Endochondral pob txha loj hlob deposits pob txha ntawm lub epiphyseal phaj, cia cov pob txha loj hlob ntev.
Yuav ua li cas tom qab cov phiaj xwm epiphyseal kaw?
Lawv ntxiv qhov ntev thiab dav rau pob txha. Thaum cov menyuam loj hlob tuaj, daim phiaj loj hlob tuaj rau hauv cov pob txha. Lub phaj loj hlob uas tau ua tiav rau hauv cov pob txha pob txha yog lub phaj loj hlob kaw. Tom qab lub phaj loj hlob kaw lawm, cov pob txha tsis loj hlob ntxiv lawm.
Yuav ua li cas thaum lub phaj epiphyseal yog ossified?
Lub phaj epiphyseal yog thaj tsam ntawm kev loj hlob hauv cov pob txha ntev. Nws yog ib txheej ntawm hyaline pob txha mos uas ossification tshwm sim hauv cov pob txha tsis paub. Nyob rau sab epiphyseal ntawm lub epiphyseal phaj, pob txha mos yog tsim. Ntawm diaphyseal sab, pob txha mos yog ossified, thiab lub diaphysis loj hlob nyob rau hauv ntev.
daim phaj epiphyseal hu li cas thaum nws kaw?
Qhov kev hloov no yog hu ua epiphyseal kaw lossis loj hlob phaj fusion. Ua tiav fusion tshwm sim nyob rau nruab nrab ntawm hnub nyoog 15 thiab 20 rau cov ntxhais (nrog rau feem ntau yog 15-18 xyoo rau cov ntxhais) thiab nruab nrab ntawm 17 thiab 24 rau cov tub (nrog rau feem ntau yog 18-22 xyoo rau cov tub).
Nyob rau theem twg ntawm ossification yog ib daim phaj epiphyseal tam sim no?
Nyob rau hauv theem kawg ntawm kev txhim kho pob txha ua ntej yug menyuam, cov chaw ntawm cov epiphyses pib calcify. Secondary ossification chaw tsim nyob rau hauv lub epiphyses raws li cov hlab ntsha thiab osteoblasts nkag mus rau cov cheeb tsam no thiab hloov hyaline pob txha mos rau hauv pob txha spongy.
