Video: Cov txheej txheem ntawm daim tawv nqaij twg muaj cov kab sib faib sai sai?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
19 Daim npav hauv Cov Teeb no
| Txheej ntawm daim tawv nqaij qhov twg muaj kev faib cell sai tshaj plaws. | Stratum hauv paus |
|---|---|
| Epidermal txheej uas muaj cov qia hlwb | Stratum basale |
| Dermal txheej nrog cov hauv paus plaub hau thiab qog | Duab puab dermis |
| Tiv thaiv daim tawv nqaij tiv thaiv kab mob | Langerhans hlwb |
| Ua keratin. | Keratinocytes |
Tsis tas li kom paub yog, lub npe txheej txheej ntawm kev faib cov cell sai npaum li cas?
Basal Cell Layer Cov cell hauv paus txuas ntxiv tsis tu ncua, thiab cov cell tshiab tas li thawb cov laus mus rau saum npoo av tawv nqaij , qhov twg lawv yog qhov kawg. Lub basal cell txheej tseem hu ua stratum germinativum vim qhov tseeb tias nws yog tas li germinating (tsim) cov hlwb tshiab.
Ib tus kuj tseem yuav nug, qhov sib faib cov cell nyob hauv daim tawv nqaij sai npaum li cas? Lub epidermal qia hlwb dag nyob rau hauv lub basal txheej, txuas nrog basal lamina. Progeny uas tau cog lus rau kev sib txawv mus los ntawm ntau yam ceev kev faib nyob rau hauv lub basal txheej, thiab ces nres faib thiab txav mus rau qhov chaw ntawm lub tawv nqaij.
Ib yam nkaus, tib neeg nug, txheej txheej ntawm txheej txheej puas muaj kev faib cell sai tshaj?
Stratum Basle Txheej ntawm epidermis nyob qhov twg yog qhov kev faib cell ceev tshaj plaws.
Dab tsi txheej ntawm cov epidermis muaj keratinocytes nquag faib?
stratum hauv qab
Pom zoo:
Dab tsi yog txheej txheej sab saum toj ntawm daim tawv nqaij nyob ib sab ntawm daim tawv nqaij?
Lub dermis txuas cov epidermis mus rau hypodermis, thiab muab lub zog thiab kev ywj pheej vim muaj cov collagen thiab elastin fibers. Nws tsuas muaj ob txheej: txheej txheej papillary nrog papillae uas nthuav mus rau hauv daim tawv nqaij thiab qis dua, txheej txheej reticular uas muaj cov ntaub so ntswg sib txuas xoob
Dab tsi yog qhov txawv ntawm daim tawv nqaij thiab daim tawv nqaij daim ntawv xeem?
Qauv: Sib sib zog nqus ntawm daim tawv nqaij; connective ntaub so ntswg muaj li ntawm ob txheej. Muaj nuj nqi: Muaj lub luag haujlwm rau cov txheej txheem muaj zog thiab yoog raws ntawm daim tawv nqaij; lub epidermis pauv cov pa roj, cov khoom noj, thiab cov khoom pov tseg nrog cov hlab ntsha hauv lub dermis
Puas yog ib pawg ntawm cov kab mob uas ua rau muaj kab mob ntawm cov plaub hau ntawm daim tawv nqaij thiab rau tes?
Cov kab mob hu ua fungal ntawm daim tawv nqaij yog kab mob sab nrauv feem ntau cuam tshuam nrog tawv nqaij, plaub hau, thiab rau tes. Feem ntau, cov kab mob fungal no tshwm sim los ntawm dermatophytes, tab sis lawv tuaj yeem tshwm sim los ntawm nondermatophyte fungi thiab poov xab (Candida hom)
Hom ntaub so ntswg twg ua rau daim tawv nqaij ntawm daim tawv nqaij?
Lub epidermis yog tsim los ntawm stratified squamous epithelium. Lub dermis muaj cov ntaub so ntswg sib txuas, cov leeg nqaij du, thiab cov paj hlwb
Cov kauj ruam hauv cov txheej txheem txheej txheem txheej txheem mob yog dab tsi?
Cov ntsiab lus hauv cov txheej txheem no (8) ua kom cov vascular endothelium. vasodilation. ua npaws ntau lawm. tsiv teb tsaws ntawm cov kab mob tiv thaiv kab mob hlwb mus rau thaj chaw. ua kom thiab cytokine tso tawm los ntawm neutrophils. phagocytosis thiab cov hau kev ntawm kev puas tsuaj. tus mob theem teb. clotting cascade