Qhov sib txawv tseem ceeb ntawm periosteum thiab endosteum yog tias periosteum muaj txheej txheej txheej fiber ntau txuas thiab txheej txheej hauv osteogenic thaum lub endosteum yog cov txheej nyias nyias uas npog cov pob txha sab hauv.
Cov pob txha ua lub luag haujlwm tseem ceeb hauv lub cev thiab lub cev. Tawm ntawm cov pob txha, cov pob txha ntev yog cov pob txha ntau tshaj plaws, thiab nws yog ib qho tseem ceeb rau kev kawm txog kev tsim thiab kev loj hlob ntawm cov pob txha. Cov pob txha ntev muaj ob lub ntsiab lus tseem ceeb; uas yog, cov pob txha compact thiab spongy pob txha. Cov pob txha compact yog qhov tuab thiab tawv ntawm cov pob txha ntev. Cov pob txha spongy yog cov ntaub so ntswg uas muaj kab noj hniav ntawm cov pob txha uas tsis tshua muaj zog thiab muaj cov pob txha liab. Cov qauv ntawm cov pob txha muaj cov qauv anatomical xws li lub zeem muag thiab qhov muag epiphysis, cov pob txha spongy, thiab diaphysis uas muaj cov kab noj hniav medullary, endosteum, periosteum, thiab cov as-ham foramen.
YPeriosteum yog dab tsi?
Periosteum yog lub ntsiab sab nrauv ntawm cov pob txha. Nws tsim ib txheej txheej fibrous txuas cov ntaub so ntswg thiab ib txheej hauv osteogenic. Feem ntau, cov txheej txheem fibrous tsim cov ntaub so ntswg tsis sib xws. Raws li qhov no, cov ntaub so ntswg sib txuas muaj zog collagen fibers thiab fibroblast hlwb. Fibroblasts yog cov hlwb tshwj xeeb uas koom nrog hauv kev tsim cov pob txha fiber. Nws yog feem ntau yog kho pob txha mechanism teb rau kev raug mob.
Yog li ntawd, lub luag haujlwm tseem ceeb ntawm txheej txheej fibrous yog txuas cov pob txha nrog lwm qhov tseem ceeb xws li ligaments, pob qij txha thiab cov leeg. Cov txheej txheem fibrous yog feem ntau vascularized ib feem ntawm lub periosteum thiab yog ib qho tseem ceeb contributor rau cov ntshav ntawm cov pob txha. Yog li, nws koom nrog hauv kev muab khoom noj rau cov pob txha loj hlob. Nws kuj suav nrog kev nplua nuj neural network. Qhov sib sib zog nqus ntawm txheej txheej muaj cov txheej txheem fibroelastic uas pab tswj cov pob txha elasticity.
Daim duab 01: Periosteum
Ntxiv mus, txheej osteogenic plays lub luag haujlwm tseem ceeb hauv pob txha calcification thiab kho dua tshiab. Nws muaj cov qia hlwb thiab cov hlwb osteoblast nyob rau saum npoo ntawm cov ntaub so ntswg. Lub xub ntiag ntawm cov txheej txheem osteogenic ua rau qhia qhov nyuaj rau cov pob txha. Yog li, cov txheej txheem osteogenic ua rau qhov nyuaj ntawm cov pob txha. Osteoblasts yog cov hlwb koom nrog hauv cov txheej txheem calcification. Los ntawm cov txheej txheem ntawm cov pob txha calcification, lub periosteum koom rau hauv cov pob txha kho thiab txhim kho txheej txheem los ntawm kev tso calcium los ntawm osteoblast hlwb.
Endosteum yog dab tsi?
Endosteum yog nyias, mos, cov ntaub so ntswg sib txuas uas ua rau kab noj hniav ntawm cov pob txha ntev. Li no, nws kuj ua raws li txheej rau cov pob txha hauv cov pob txha thiab cov trabeculae ntawm cov ntaub so ntswg. Cov yam ntxwv feature ntawm lub endosteum yog lub xub ntiag ntawm osteoprogenitor hlwb. Cov kab mob progenitor no thaum loj hlob sib txawv rau hauv cov osteoblasts paub tab.
Daim duab 02: Endosteum
Ntxiv mus, cov hlwb progenitor no kuj koom nrog hauv kev tsim cov pob txha-matrix. Endosteum kuj muaj cov kab mob haematopoietic uas yog lub luag haujlwm rau kev tsim cov qe ntshav.
Muaj peb yam tseem ceeb ntawm endosteum, raws li nws qhov chaw.
- Cortical endosteum - endosteum pom nyob rau ntawm phab ntsa sab hauv ntawm cov pob txha cortical ua raws li ciam teb ntawm cov pob txha kab noj hniav.
- Osteonal endosteum - nyob rau ntawm phab ntsa sab hauv ntawm cov kwj dej osteonal ntawm cov pob txha pob txha.
- Trabaculae endosteum - kab cov phab ntsa sab hauv ntawm trabeculae.
Tsis tas li, endosteum feem ntau koom nrog hauv kev kho pob txha, kev loj hlob thiab kev loj hlob.
Dab tsi yog qhov zoo sib xws ntawm Periosteum thiab Endosteum?
- Periosteum thiab Endosteum yog ob qhov tseem ceeb ntawm cov pob txha.
- Lawv nyob rau thaj tsam diaphysis ntawm cov pob txha.
- Kuj, ob leeg koom nrog kev kho pob txha thiab txhim kho.
- Tsis tas li ntawd, lawv pab txhawb cov pob txha tawv los ntawm cov txheej txheem calcification.
Qhov txawv ntawm Periosteum thiab Endosteum yog dab tsi?
Periosteum thiab endosteum yog ob txheej txheej ntawm cov pob txha, tshwj xeeb tshaj yog nyob rau thaj tsam diaphysis. Periosteum kab sab nrauv ntawm cov pob txha thiab sab hauv osteogenic txheej. Ntawm qhov tod tes, endosteum tsim cov txheej hauv nyias membranous txheej ntawm cov pob txha kab noj hniav. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm periosteum thiab endosteum. Tsis tas li ntawd, periosteum muaj ob txheej txheej; fibrous txheej thiab cov ntaub so ntswg txheej thaum lub endosteum muaj ib txheej; connective ntaub so ntswg txheej. Li no, nws kuj yog qhov txawv ntawm periosteum thiab endosteum.
Ntxiv mus, periosteum thiab endosteum txawv ntawm ib leeg hauv cov tuab thiab. Raws li, lub thickness ntawm periosteum yog hais txog 0.01 hli thaum lub thickness ntawm endosteum yog hais txog 0.1-0-5 hli. Tsis tas li ntawd, qhov sib txawv ntxiv ntawm periosteum thiab endosteum yog tias periosteum muaj osteoblasts paub tab raws li lawv hom cell thaum endosteum muaj fibroblasts thiab hematopoietic hlwb. Cov hauv qab no infographic ntawm qhov sib txawv ntawm periosteum thiab endosteum qhia cov ntsiab lus ntxiv ntawm qhov sib txawv no.
Summary – Periosteum vs Endosteum
Periosteum thiab endosteum yog qhov tseem ceeb hauv cov txheej txheem ntawm kev kho pob txha thiab kho cov pob txha thaum raug mob rau pob txha. Nws yog cov txheej txheem txuas ntxiv uas tau nrawm nrawm thaum lub sijhawm loj hlob thiab ua rau nws tus nqi qis dua cov txheej txheem kev laus. Yog li ntawd, periosteum feem ntau cuam tshuam nrog calcium deposition thiab muab khoom noj rau cov pob txha loj hlob. Yog li, nws muaj feem xyuam rau kev ruaj ntseg ntawm cov pob txha. Ntawm qhov tod tes, endosteum uas yog lub hauv ob sab hauv koom nrog hauv kev tsim cov osteoblasts ntawm cov hlwb progenitor los pib cov txheej txheem pob txha. Yog li, qhov no yog qhov txawv ntawm periosteum thiab endosteum.
