Cov pob txha tseem loj hlob thiab elongate raws li cov pob txha mos ntawm cov epiphyses faib. … Secondary ossification centre 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 mus rau hauv cov pob txha spongy pob txha Fibroblasts tsim collagen fibers uas txuas cov pob txha tawg, thiab osteoblasts pib tsim cov pob txha spongy. Kev kho cov ntaub so ntswg ntawm cov pob txha tawg yog hu ua fibrocartilaginous callus, raws li nws yog tsim los ntawm ob qho tib si hyaline thiab fibrocartilage (Daim duab 2). Qee cov pob txha spicules kuj tuaj yeem tshwm sim ntawm qhov no. https://courses.lumenlearning.com › wm-biology2 › tshooj
pob txha loj hlob thiab kev loj hlob | Biology rau Majors II - Lumen Learning
Yuav ua li cas tshwm sim hauv pob txha spongy ntawm epiphysis?
Lub epiphysis yog ua los ntawm cov pob txha spongy cancellous npog los ntawm ib txheej nyias ntawm cov pob txha. Nws txuas nrog cov pob txha ncej los ntawm cov pob txha mos epiphyseal, lossis cov phaj loj hlob, uas pab txhawb kev loj hlob ntawm cov pob txha ntev thiab nws thiaj li hloov cov pob txha.
Vim li cas cov pob txha spongy?
Cov pores muaj cov pob txha, paj hlwb, thiab cov hlab ntsha uas nqa cov hlwb thiab cov as-ham hauv thiab tawm ntawm pob txha. Txawm hais tias cov pob txha spongy yuav nco ntsoov koj ntawm chav ua noj daim txhuam cev, cov pob txha no yog cov tawv heev thiab tawv, thiab tsis squishy txhua. Sab hauv ntawm koj cov pob txha yog puv nrog cov ntaub so ntswg hu ua pob txha.
Dab tsiPuas yog qhov zoo ntawm cov pob txha spongy nyob rau hauv epiphysis?
Cov pob txha spongy tus qauv tsis tshua muaj tso cai rau qhov ze ntawm cov pob txha ntev kom muaj zog ntxiv yam tsis ntxiv pawg. Qhov no ua rau cov pob txha sib zog thiab tiv thaiv kev puas tsuaj vim qhov quab yuam feem ntau yog siv rau qhov kawg ntawm cov pob txha.
pob txha pob txha nyob qhov twg?
Osteoblasts nkag mus rau cov pob txha mos uas tawg thiab hloov nws nrog cov pob txha spongy. Qhov no tsim ib lub chaw ossification thawj. Ossification txuas ntxiv los ntawm qhov chaw no mus rau qhov kawg ntawm cov pob txha. Tom qab cov pob txha spongy tsim nyob rau hauv lub diaphysis, osteoclasts zom cov pob txha tshiab los qhib lub medullary kab noj hniav.
