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Video: Dab tsi yog cov khoom hauv av hauv cov ntaub so ntswg sib txuas?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov ' cov khoom hauv av ' ntawm extracellular matrix yog cov khoom siv amorphous gelatinous. Nws yog pob tshab, tsis muaj xim, thiab ua rau qhov chaw ntawm fibers thiab hlwb. Nws yeej muaj cov molecules loj hu ua glycosoaminoglycans (GAGs) uas txuas ua ke los tsim cov molecules loj dua hu ua proteoglycans.
Hais txog qhov no, dab tsi yog qhov ua haujlwm ntawm cov khoom hauv av hauv cov ntaub so ntswg?
Cov khoom hauv av yog cov khoom siv keeb kwm yav dhau los uas tag nrho lwm cov ntaub so ntswg sib txuas. Hauv cov ntaub so ntswg zoo tib yam, cov khoom hauv av muaj feem ntau ntawm dej uas lub luag haujlwm tseem ceeb yog muab txoj hauv kev rau kev sib txuas lus thiab thauj (los ntawm diffusion) ntawm cov ntaub so ntswg.
Ib sab saum toj no, dab tsi yog qhov noncellular tivthaiv ntawm cov ntaub so ntswg sib txuas uas pom cov khoom hauv av? Lub fibroblast synthesizes collagen thiab hauv av ntawm extracellular matrix. Cov cell no ua cov protein ntau uas lawv tso rau hauv los tsim cov protein cov ntaub so ntswg sib txuas txheej Qee cov fibroblasts muaj kev ua haujlwm contractile; Cov no yog hu ua myofibroblasts.
Raws li txoj cai, cov khoom hauv av muaj dab tsi hauv nws?
Cov khoom hauv av yog zoo li amorphous gel khoom nyob rau hauv lub extracellular qhov chaw uas muaj tag nrho cov Cheebtsam ntawm lub extracellular matrix (ECM) tshwj tsis yog rau cov ntaub ntawv fibrous xws li collagen thiab elastin. Cov khoom hauv av yog nquag nyob rau hauv txoj kev loj hlob, txav, thiab proliferation ntawm cov ntaub so ntswg, nrog rau lawv cov metabolism.
Cov khoom hauv av nyob qhov twg hauv lub cev?
Cov khoom hauv av , zoo li amorphous gel khoom tam sim no nyob rau hauv muaj pes tsawg leeg ntawm ntau yam connective ntaub so ntswg. Nws yog qhov tseeb tshaj plaws pom hauv pob txha mos, hauv qhov kev lom zem ntawm lub qhov muag, thiab hauv Wharton's jelly ntawm txoj hlab ntaws.
Pom zoo:
Dab tsi yog qhov sib txawv ntawm cov ntaub so ntswg sib txuas tsis tu ncua thiab cov ntaub so ntswg sib txuas tsis sib xws?
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Cov ntaub so ntswg sib txuas tsis sib thooj muaj cov fibers uas tsis tau sib dhos ua ke zoo ib yam li cov ntaub so ntswg sib txuas ib ntus. Cov ntaub so ntswg sib txuas tsis sib thooj muaj feem ntau ntawm cov fibers collagen. Nws muaj cov khoom hauv av tsawg dua li cov ntaub so ntswg sib txuas
Cov ntaub so ntswg txuas dab tsi txuas cov pob txha rau cov leeg?
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Cov leeg yog cov ntaub so ntswg sib txuas ua ke uas txuas cov leeg rau pob txha. Tendons kuj tseem tuaj yeem txuas cov leeg rau cov qauv xws li lub qhov muag
Hom ntaub so ntswg sib txuas twg yog cov ntaub so ntswg?
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Cov ntaub so ntswg reticular yog ib hom tshwj xeeb ntawm cov ntaub so ntswg sib txuas uas muaj nyob hauv ntau qhov chaw uas muaj cov ntsiab lus ntawm tes. Nws muaj ib tug ceg thiab mesh-zoo li tus qauv, feem ntau hu ua reticulum, vim yog kev npaj ntawm reticular fibers (reticulin). Cov fibers no yeej yog hom III collagen fibrils
Dab tsi yog cov ntaub so ntswg sib txuas ntau tshaj plaws hauv lub cev?
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Cov ntaub so ntswg sib txuas yog qhov muaj ntau tshaj plaws, nthuav dav dav, thiab ntau yam sib txawv. Nws suav nrog cov nqaij fibrous, rog, pob txha mos, pob txha, pob txha pob txha, thiab ntshav
Dab tsi yog cov ntaub so ntswg sib txuas hauv lub cev?
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Cov ntaub so ntswg sib txuas: Cov khoom siv ua los ntawm cov fiber ntau ua lub hauv paus thiab txhawb cov qauv rau lub cev nqaij daim tawv thiab lub cev. Cov ntaub so ntswg ncig ncig ntau lub cev. Pob txha mos thiab pob txha yog cov ntaub ntawv tshwj xeeb ntawm cov ntaub so ntswg. Txhua cov ntaub so ntswg sib txuas tau muab los ntawm mesoderm, txheej nruab nrab ntawm cov kab mob hauv lub cev