Endochondral ossification yog cov txheej txheem uas cov pob txha loj hlob yog hloov pauv los ntawm cov pob txha los tsim cov pob txha loj hlob. Cov txheej txheem no tshwm sim ntawm peb qhov chaw tseem ceeb: lub physis, epiphysis, thiab cov pob txha cuboidal ntawm carpus thiab tarsus.
Ib co piv txwv ntawm cov pob txha endochondral yog dab tsi?
Tag nrho cov pob txha ntawm lub cev, tshwj tsis yog rau cov pob txha tiaj tus ntawm pob txha taub hau, mandible, thiab clavicles, yog tsim los ntawm endochondral ossification. Hauv cov pob txha ntev, chondrocytes tsim cov qauv ntawm cov pob txha mos hyaline diaphysis.
Dab tsi yog pom hauv endochondral ossification?
Endochondral ossification yog ib qho ntawm ob txheej txheem tseem ceeb thaum lub sij hawm fetal kev loj hlob ntawm mammalian skeletal system uas cov pob txha tsim. Tsis zoo li intramembranous ossification, uas yog lwm cov txheej txheem uas cov pob txha tsim, pob txha mosyog tam sim no thaum lub sij hawm endochondral ossification.
Cov hlwb dab tsi yog lub luag haujlwm rau endochondral ossification?
6.3.
Endochondral ossification yog txheej txheem uas osteoprogenitor cells tsim cov pob txha nruab nrab ua ntej nws thiaj li hloov cov pob txha. Thaum lub sij hawm embryonic txoj kev loj hlob endochondral ossification yog lub luag hauj lwm rau tsim cov pob txha ntev.
Dab tsi yog 5 thaj chaw ntawm endochondral ossification?
Dua, saib cov cheeb tsam ntawm cov hlwb cia, proliferation, maturation, hypertrophy, calcification, ossification thiab resorption Thaum endochondral ossification tau zoo kawg nkaus ntawm epiphyseal nto ntawm lub disk, nws tseem txuas ntxiv ntawm nws qhov chaw diaphyseal (piv txwv li, hauv metaphysis).
