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Video: Cov collagen fibers tau npaj li cas?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Collagen fibers ua tau npaj meej, raws li nyob rau hauv tendons los yog cornea (saib daim duab. 29.3), los yog tsawg dua li, raws li nyob rau hauv lub phab ntsa ntawm txoj hnyuv los yog daim tawv nqaij. Lub qhov muag uas tsim cov pob tshab pem hauv ntej ntawm lub qhov muag kuj zoo koom nyob rau hauv orthogonal txheej ntawm collagen fibrils. Cov ntaub so ntswg sib txuas kuj tuaj yeem ua ywj.
Tsis tas li ntawd, dab tsi yog cov yam ntxwv ntawm collagen fibers?
Collagen fibers, thaum yoog raws, muaj lub zog zoo zog , tiv taus stretching, thiab muab ligaments thiab tendons lawv cov yam ntxwv resilience thiab zog . Cov fibers no tuav cov nqaij sib txuas ua ke, txawm tias thaum lub cev txav mus los.
Tom qab ntawd, lo lus nug yog, cov pob txha puas muaj cov collagen fibers? Tus txheeb ze tus nqi ntawm cov khoom no txiav txim siab ua haujlwm ntawm cov ntaub so ntswg sib txuas. Pob txha thiab leeg muaj feem ntau collagen fibers los muab cov neeg kho tshuab muaj zog, qhov sib txuas cov ntaub so ntswg nyob rau hauv feem ntau lwm yam kabmob muaj tsawg dua collagen fibers thiab ntau proteoglycans.
Ntxiv mus, collagen fibers yog dab tsi?
Collagen yog ib hom protein fiber ntau pom ntau thoob plaws peb lub cev. Nws muab lub zog thiab kev tiv thaiv rau ntau qhov sib txawv ntawm lub cev, suav nrog daim tawv nqaij. Tshwj xeeb tshaj yog, collagen muaj nyob rau hauv peb ntau hom kev sib txuas cov ntaub so ntswg xws li pob txha mos, tendons, pob txha, thiab ligaments.
Yuav ua li cas collagen Organized hauv cov leeg?
Tendons txuas cov leeg mus rau pob txha. Collagen yog tsim los ntawm cov hlua ntev ntev, hu ua tropocollagen, koom hauv cov pob me me (microfibrils thiab fibrils) kom txhua txoj hlua muaj qhov sib tshooj loj nrog lwm tus. Tropocollagen molecules cross-link covalently rau ib leeg siv lysine sab saw (Daim duab 1).
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Yog tias koj ua tib zoo saib, koj tuaj yeem pom tias cov cell tau teeb tsa ua pawg. Qee lub cell muaj ntau cov granules hauv lawv cov cytoplasm ntau dua li lwm qhov thiab zoo li tsaus ntuj. Qee qhov me me tshwm sim los ntawm kev khaws cov granules uas muaj cov tshuaj hormones hauv lub axon terminals ntawm hypothalamic neurons uas tsim cov tshuaj hormones
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Ntub Dej Ntws: Muab cov kua dej tso rau hauv nruab nrab ntawm cov swb. Muab cov qauv piv rau cov kua, siv tus tweezers. Ntawm lub kaum sab xis, tso ib sab ntawm daim npog npog tiv thaiv cov swb ua kev sib cuag nrog sab ntug ntawm cov kua ua kua. Qhib lub npog maj mam, zam kom tsis muaj cua npuas. Tshem cov dej ntau dhau nrog daim phuam ntawv
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Somatic efferent neurons yog lub cev muaj zog neurons uas ua rau muaj kev cuam tshuam los ntawm tus txha caj qaum mus rau cov leeg pob txha. Visceral afferent neurons yog cov neurons hnov qab uas ua rau impulses pib hauv receptors hauv cov leeg nqaij & cov leeg mob
Cov collagen fibers ua dab tsi?
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Collagen yog ib hom protein ntau fiber ntau pom thoob plaws hauv peb lub cev. Nws muab lub zog thiab kev tiv thaiv rau ntau qhov sib txawv ntawm lub cev, suav nrog daim tawv nqaij. Tshwj xeeb tshaj yog, collagen muaj nyob rau hauv peb ntau hom kev sib txuas cov ntaub so ntswg xws li pob txha mos, tendons, pob txha, thiab ligaments
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Ib qho kev daws teeb meem yog npaj los ntawm kev ntsuas qhov tsis tsim nyog ntawm cov khoom ntshiab lossis los ntawm kev ntsuas qhov ntim tsis tsim nyog ntawm cov kua ntshiab thiab diluting rau lub ntim paub.Yuav ua li cas qhov no ua tiav nyob ntawm qhov xav tau concentrationunit