Video: Dab tsi yog papillary system?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Saum, cov papillary txheej, muaj ib tug nyias txheej ntawm collagen fibers. Cov papillary txheej muab cov as-ham los xaiv cov khaubncaws sab nraud povtseg ntawm epidermis thiab tswj qhov kub thiab txias. Ob qho ntawm cov haujlwm no tau ua tiav nrog cov hlab ntsha nyias, dav qhov system uas ua haujlwm zoo ib yam li lwm cov vascular tshuab hauv lub cev.
Kuj paub yog, thaj tsam papillary yog dab tsi?
Cov papillary dermis yog txheej txheej saum toj kawg nkaus ntawm dermis. Nws cuam tshuam nrog cov kab rov tav ntawm daim tawv nqaij thiab tau tsim los ntawm cov nplua thiab xoob txheej collagen fibers. Cov cheeb tsam papillary yog tsim los ntawm cov ntaub so ntswg sib txuas isolar txuas.
Zoo sib xws, dab tsi yog txheej txheej papillary ntawm lub dermis? Cov txheej txheej papillary yog ua los ntawm xoob, cov ntaub so ntswg sib txuas, uas txhais tau tias cov collagen thiab elastin fibers ntawm qhov no txheej tsim ib lub xoob xoob. Qhov no superficial txheej ntawm dermis cov phiaj xwm rau hauv stratum basale ntawm cov epidermis kom tsim cov ntiv tes zoo li tawv nqaij papillae (saib daim duab 6).
Ib yam li ntawd, nws tau nug, qhov sib txawv ntawm txheej txheej papillary thiab txheej reticular yog dab tsi?
txheej txheej papillary yog cov vascularized isolar cov ntaub so ntswg sib txuas uas muaj cov ntaub qhwv ntawm collagen thiab elastin fibers; thiab cov reticular txheej , accounting rau 80% ntawm lub thickness ntawm lub dermis, yog tuab irregular connective ntaub so ntswg. 8.
Puas muaj 7 txheej ntawm daim tawv nqaij?
Tib neeg tawv nqaij yog txheej txheej sab nrauv ntawm lub cev thiab yog lub cev loj tshaj plaws ntawm cov kab ke ua ke. Cov tawv nqaij muaj mus txog xya txheej ntawm ectodermal cov ntaub so ntswg thiab tiv thaiv cov leeg hauv qab, cov pob txha, ligaments thiab cov kabmob sab hauv.
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