![Dab tsi yog tunica adventitia muaj? Dab tsi yog tunica adventitia muaj?](https://i.answers-medical.com/preview/medical-health/13843960-what-does-tunica-adventitia-contain-j.webp)
Video: Dab tsi yog tunica adventitia muaj?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov tunica adventitia txheej sab nrauv, yog qhov muaj zog tshaj ntawm peb txheej. Nws yog tsim los ntawm collagenous thiab elastic fibers. (Cov collagen yog cov protein txuas sib txuas.) tunica kev lom zem muab kev txwv tsis pub muaj kev tiv thaiv, tiv thaiv lub nkoj los ntawm kev nthuav dav ntau dhau.
Tom qab ntawd, dab tsi yog tunica adventitia tsim los ntawm?
Cov tunica externa (Tshiab Latin "txheej tsho sab nrauv") - tseem hu ua tunica kev lom zem (Latin tshiab "lub tsho ntxiv"), yog sab nraud tunica (txheej) ntawm cov hlab ntsha, ib puag ncig tunica xov xwm Nws yog feem ntau muaj los ntawm collagen thiab, hauv cov hlab ntsha, tau txhawb los ntawm sab nrauv lamina.
Ib yam li ntawd, muaj pes tsawg txheej txheej ntawm cov hlab ntsha hauv tunica muaj? peb txheej
Yog li ntawd, hom ntaub so ntswg twg tsim tau Tunica sab nraud?
cov ntaub so ntswg sib txuas
Vim li cas tunica adventitia tuab dua hauv cov leeg?
Yog vim li cas tunica adventitia ntau dua thicker nyob rau hauv cov leeg tshaj li ntawm cov hlab ntsha? Cov hlab ntsha muaj cov leeg phab ntsa uas yuav tsum tau pub ntshav ib yam nkaus. Cov adventitia rau cov leeg ntshav yog li ib feem ntawm cov ntshav xa mus rau cov leeg, uas ua rau nws khov kho. Cov leeg phab ntsa tso cai rau cov hlab ntsha kom tswj tau cov dej ntws.
Pom zoo:
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Tsis pub dhau ntu ua ntej yog ob qhov chaw ua kua dej: chav nyob sab hauv nruab nrab ntawm lub ntsej muag tom qab ntawm lub qhov muag (piv txwv li lub qhov muag lub qhov muag) thiab lub qhov muag. posterior chamber nruab nrab ntawm iris thiab lub ntsej muag pem hauv ntej ntawm vitreous
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Cov hlab ntsha thiab cov hlab ntsha yog tsim los ntawm peb cov ntaub so ntswg. Cov txheej txheej tuab ntawm lub nkoj (tunica adventitia lossis tunica externa) yog ua los ntawm cov ntaub so ntswg sib txuas. Qhov nruab nrab txheej (tunica media) yog tuab dua thiab muaj cov ntaub so ntswg sib txuas hauv cov hlab ntshav ntau dua li leeg leeg
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Cov xov xwm tunica yog txheej nruab nrab thiab tau tsim los ntawm cov txheej txheej ntawm cov leeg leeg leeg leeg (VSMCs) kos rau hauv collagenous ECM uas muaj cov txheej txheem glycoproteins thiab proteoglycans xws li hyaluronan thiab décorin, thiab piav qhia los ntawm cov yas laminae