Video: Dab tsi yog dermal papillae?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov dermal papillae daim tawv nqaij yog ib feem ntawm lub Uppermost txheej ntawm lub dermis , lub papillary dermis , thiab cov roob lawv tsim tau zoo heev ua rau thaj tsam thaj tsam ntawm dermis thiab epidermis. Dermal papillae kuj tseem ua lub luag haujlwm tseem ceeb hauv kev tsim cov plaub hau, kev loj hlob thiab kev caij tsheb kauj vab.
Hauv kev hwm rau qhov no, kev ua haujlwm ntawm dermal papillae yog dab tsi?
Koj yuav tsum pom tias qhov dermis extends mus rau hauv lub epidermis nyob rau hauv cov qauv hu ua dermal papillae daim tawv nqaij . Cov no muaj ob kev ua haujlwm . Ua ntej, lawv pab adhesion ntawm cov dermal thiab epidermal txheej. Qhov thib ob, nyob rau hauv cov cheeb tsam ntawm daim tawv nqaij tuab zoo li no, lawv muab ib qho chaw loj, los txhawb cov txheej txheem epidermal.
Ib qho ntxiv, yuav ua li cas dermal papilla? Cov dermal papilla yog tsim los ntawm condensation ntawm dermal fibroblasts dag hauv qab sib sau epidermal daim ntawv. Cov papermal daim tawv nqaij xa cov teeb liab mus rau ib puag ncig epithelium, tswj nws txoj kev loj hlob thiab kev sib txawv rau ntau hom xov tooj ntawm tes ntawm cov plaub hau loj hlob tuaj.
Tsis tas li kom paub, dermal papilla hauv lub cev yog dab tsi?
n. Ib qho ntawm qhov pom ntawm qhov pom ntawm corium lossis dermis uas interlock nrog recesses nyob rau hauv lub overlying epidermis, muaj vascular loops thiab cov hlab ntsha tshwj xeeb endings, thiab yog teem nyob rau hauv ridgelike kab feem ntau tseem ceeb ntawm tes thiab ko taw. papilla ntawm corium.
Nyob rau hauv qhov twg ntawm cov plaub hau yog pom dermal papilla?
Tawv nqaij. Lub hauv paus ntawm a cov hauv paus plaub hau yog me ntsis loj rau daim ntawv plaub hau noob. Nkag mus rau hauv qab ntawm lub plaub hau lub teeb yog lub dermal papilla thiab nws cuam tshuam txog cov hlab ntsha thiab qab haus huv. Hauv paus ntawm a plaub hau , epidermal hlwb nquag proliferate los pab txhawb rau lub precursors ntawm lub medulla thiab sab cortex ntawm lub plaub hau
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