Qhov Tseem Ceeb Qhov txawv - Endochondral Ossification vs Intramembranous Ossification
Osteogenesis, feem ntau hu ua ossification, yog txheej txheem uas cov txheej txheem tshiab ntawm cov pob txha raug tso los ntawm osteoblasts. Pob txha ossification tsis zoo ib yam li cov pob txha calcification. Nws yog ib qho txheej txheem uas cuam tshuam txog kev tso cov calcium-raws li ntsev hauv cov hlwb thiab cov ntaub so ntswg. Ib qho txheej txheem pob txha ossification tuaj yeem yog ob hom: endochondral ossification thiab intramembranous ossification. Thaum lub sij hawm endochondral ossification, pob txha mos yog siv los ua tus precursor rau pob txha tsim. Nyob rau hauv intramembranous ossification, cov pob txha cov ntaub so ntswg yog ncaj qha nteg rau ntawm ib tug primitive connective ntaub so ntswg hu ua mesenchyma yam tsis muaj kev koom tes ntawm ib tug nruab nrab pob txha mos. Qhov no yog qhov sib txawv tseem ceeb ntawm endochondral ossification thiab intramembranous ossification. Nyob rau hauv cov ntsiab lus ntawm cov pob txha, cov txheej txheem kho los ntawm plaster ntawm Paris tshwm sim los ntawm endochondral ossification thaum lub pob txha tawg uas tau kho los ntawm kev txo qis thiab sab hauv kho tau zoo los ntawm intramembranous ossification.
Endochondral Ossification yog dab tsi?
Endochondral ossification yog txheej txheem uas yog qhov tseem ceeb rau kev tsim cov pob txha ntev (femur) thiab cov pob txha tiaj tus thiab tsis sib xws xws li tav thiab vertebrae. Endochondral ossification yog txheej txheem uas muaj ob lub luag haujlwm tseem ceeb; nws muaj kev koom tes nyob rau hauv lub ntuj loj hlob ntawm cov pob txha thiab nws lengthening thiab tseem koom nyob rau hauv kho cov pob txha fractures lawm. Thaum lub sij hawm hom ossification txheej txheem, uas ua rau tsim cov pob txha ntev thiab lwm yam pob txha, kev koom tes ntawm pob txha pob txha precursor tshwm sim. Tag nrho cov txheej txheem ossification tshwm sim nyob rau hauv ob qhov chaw ntawm ossification, thawj thiab theem nrab.
Txheej Txheem Kev Ua Haujlwm
Nyob rau hauv thawj qhov chaw ntawm ossification thawj qhov chaw ntawm ossification uas ua rau cov tsim ntawm nruab nrab cheeb tsam ntawm cov pob txha ntev yog diaphysis. Diaphysis yog thaj av uas cov pob txha pob txha tshwm sim thawj zaug hauv cov pob txha ntev. Nyob rau hauv thawj ossification centre, osteoblasts thiab osteoclasts nqus pob txha mos uas yog tsim los ntawm chondrocytes uas ua rau lub nteg ntawm cov pob txha raws li ib tug cartilaginous network. Nws yog ib qho tseem ceeb uas yuav tsum tau hais tias pob txha mos tsis hloov mus rau hauv cov pob txha tab sis ua raws li qhov ua ntej. Thaum cov pob txha trabecular tsim, pob txha mos hloov los ntawm cov pob txha tawv thiab txuas mus rau qhov kawg ntawm cov pob txha ntev; epiphysis. Qhov chaw thib ob ossification yog pom nyob ib ncig ntawm thaj tsam ntawm epiphysis. Secondary ossification center muaj cov haujlwm zoo sib xws rau ntawm qhov chaw ossification thawj. Cov pob txha mos uas tsis muaj pob txha nyob nruab nrab ntawm cov chaw nruab nrab thiab theem nrab ossification yog hu ua pob txha mos phaj lossis epiphyseal phaj.
Daim duab 01: Endochondral Ossification
Cov phaj epiphyseal yog ib qho tseem ceeb thaum lub sij hawm tsim cov pob txha mos tshiab uas tau hloov los ntawm cov pob txha. Cov txheej txheem no ua rau qhov nce ntawm qhov ntev ntawm cov pob txha. Thaum ua tiav, cov chaw ua haujlwm thawj thiab theem nrab ossification yuav sib sau ua ke ntawm ib qho chaw hu ua kab epiphyseal. Kev loj hlob ntawm cov pob txha ua tiav thaum lub phaj epiphyseal hloov los ntawm cov pob txha.
Intramembranous Ossification yog dab tsi?
Intramembranous ossification yog ib hom pob txha ossification txheej txheem uas tsis koom nrog cov pob txha mos precursor, tab sis cov pob txha cov ntaub so ntswg yog tsim ncaj qha los ntawm cov ntaub so ntswg mesenchymal. Intramembranous ossification yog txheej txheem uas ua rau tsim cov pob txha ntawm lub puab tsaig, cov pob txha caj dab los yog clavicles. Nws kuj tseem koom nrog hauv kev tsim cov pob txha pob txha taub hau thiab tshwm sim thaum kho cov pob txha pob txha. Cov pob txha tsim thaum lub sij hawm intramembranous ossification yog pib los ntawm cov mesenchymal hlwb uas muaj nyob rau hauv lub medullary kab noj hniav ntawm ib tug pob txha puas.
Txheej Txheem Kev Ua Haujlwm
Ib pawg me me ntawm cov kab mob mesenchymal uas nyob ib sab pib rov ua dua thiab tsim ib pawg me me ntawm cov hlwb hu ua nidus. Cov txheej txheem rov ua dua no raug tso tseg thaum tsim nidus, thiab kev loj hlob ntawm morphological hloov hauv cov qia hlwb mesenchymal pib tshwm sim. Cov kev hloov pauv suav nrog lub cev ntawm lub cev ua kom loj dua thiab qhov nce ntxiv ntawm qhov ntxhib endoplasmic reticulum thiab Golgi apparatus. Cov hlwb tsim no hu ua osteoprogenitor hlwb. Cov hlwb osteoprogenitor tau hloov pauv morphological sib txawv los ua osteoblasts. Ib qho extracellular matrix yog tsim los ntawm osteoblasts uas muaj osteoid, hom 1 collagen.
Daim duab 02: Intramembranous Ossification
Osteocytes yog tsim los ntawm kev koom ua ke ntawm osteoblasts hauv osteoid. Cov pob txha pob txha thiab pob txha spicules yog tsim los ntawm cov txheej txheem mineralization. Vim qhov nce hauv qhov zais cia ntawm osteoid, qhov loj ntawm spicules yog nce, uas ua rau tsim ntawm trabeculae vim fusion ntawm spicules nrog ib leeg. Raws li kev loj hlob txuas ntxiv, cov trabeculae tau txais kev sib tshuam thiab tsim cov pob txha. Lub periosteum yog tsim nyob ib ncig ntawm lub trabeculae; Qhov no ua rau lub hauv paus chiv keeb ntawm osteogenic hlwb uas tsim cov pob txha caj dab. Thaum kawg, cov pob txha lamellae hloov cov pob txha woven.
Dab tsi yog qhov zoo sib xws ntawm Endochondral Ossification thiab Intramembranous Ossification?
Ob txoj kev koom tes hauv kev tsim cov pob txha thiab kho cov pob txha pob txha
Qhov txawv ntawm Endochondral Ossification thiab Intramembranous Ossification yog dab tsi?
Endochondral Ossification vs Intramembranous Ossification |
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| Endochondral ossification yog ib qho tseem ceeb rau kev tsim cov pob txha ntev (femur) thiab cov pob txha ncaj thiab tsis zoo xws li tav thiab vertebrae. | Intramembranous ossification yog txheej txheem uas ua rau tsim cov pob txha ntawm lub puab tsaig, cov pob txha caj dab lossis clavicles yam tsis muaj kev koom tes ntawm pob txha pob txha ua ntej. |
| Thaum lub sij hawm endochondral ossification, pob txha mos yog siv los ua tus precursor rau pob txha tsim. | Tsis muaj pob txha mos yog siv ua ntej thaum tsim cov pob txha, tab sis cov pob txha cov ntaub so ntswg yog ncaj qha tsim los ntawm cov ntaub so ntswg mesenchymal hauv intramembranous ossification. |
| fracture kho | |
| Nyob rau hauv cov ntsiab lus ntawm pob txha, cov txheej txheem kho nrog kev siv plaster ntawm Paris tshwm sim los ntawm endochondral ossification. | Cov pob txha uas tau kho los ntawm kev txo qis thiab kev kho sab hauv tau kho los ntawm intramembranous ossification. |
Summary – Endochondral Ossification vs Intramembranous Ossification
Osteogenesis yog txheej txheem uas cov txheej txheem tshiab ntawm cov pob txha raug tso los ntawm osteoblasts. Cov txheej txheem pob txha ossification tuaj yeem yog ob hom sib txawv; endochondral ossification thiab intramembranous ossification. Thaum lub sij hawm endochondral ossification, pob txha mos yog siv los ua tus precursor rau pob txha tsim. Nyob rau hauv intramembranous ossification, cov pob txha cov ntaub so ntswg yog ncaj qha nteg rau ntawm ib tug primitive connective ntaub so ntswg hu ua mesenchyma yam tsis muaj kev koom tes ntawm ib tug nruab nrab pob txha mos. Qhov no yog qhov txawv ntawm endochondral ossification thiab intramembranous ossification.
Download PDF Version of Endochondral Ossification vs Intramembranous Ossification
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv Ntawm Endochondral Ossification thiab Intramembranous Ossification
