Video: Dab tsi yog txheej txheej txheej hauv qab ntawm daim tawv nqaij?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov basal txheej yog sab hauv txheej ntawm epidermis , thiab muaj cov kab puag ncig me me hu ua hauv paus hlwb. Cov hauv paus cov cell 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.
Hauv qhov no, txheej txheej txheej hauv paus nyob qhov twg?
Basal txheej . Lub stratum basale yog ib kab ntawm kab ntawv lossis cov cuboidal lub cev nyob ntawm thaj chaw hauv qab daus uas cais cov kab mob ntawm daim tawv nqaij (saib daim duab 1-5). Feem ntau ntawm cov cell no yog keratinocytes uas tas li rov tsim tawm thiab thawb nce mus rau txhawm rau ntxiv cov kab mob epidermal saum toj no.
Ib yam li ntawd, stratum Basale yog dab tsi? Cov stratum basale (txheej hauv paus, qee zaum hu ua stratum germinativum) yog txheej txheej tob tshaj plaws ntawm tsib txheej ntawm daim tawv nqaij, sab nrauv npog ntawm daim tawv nqaij hauv cov tsiaj. Cov stratum basale yog ib txheej ntawm columnar lossis cuboidal basal cells.
Tsis tas li ntawd, dab tsi yog tsib txheej ntawm epidermis?
Lub epidermis ntawm cov tawv tuab muaj tsib txheej: stratum basale , stratum spinosum , stratum granulosum , stratum lucidum , thiab stratum corneum cov . Cov stratum basale yog ib txheej ntawm cov cell feem ntau ua los ntawm cov cell basal. Lub hauv paus ntawm lub hauv paus yog lub hauv paus ntawm lub cev uas muaj qhov cuboidal uas yog qhov ua ntej ntawm keratinocytes ntawm cov kab mob.
Lub luag haujlwm tseem ceeb ntawm stratum Basale yog dab tsi?
Qhov tob tshaj plaws/sab hauv txheej ntawm daim tawv nqaij yog stratum basale . Histologically, cov stratum basale yog ib txheej txheej ntawm keratinocytes cuboidal uas ncaj qha mus rau sab thiab txuas rau ntawm daim tawv nqaij. Cov ob lub luag haujlwm tseem ceeb ntawm stratum basale yog 1) kev loj hlob thiab 2) kev sib txuas ntawm daim tawv nqaij rau ntawm daim tawv nqaij.
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 lo lus dav dav txhais tau tias yog mob ntawm daim tawv nqaij lossis pob khaus uas tuaj yeem muaj ntau yam ua rau nws yog ib qho cim ntawm ntau hom tawv nqaij tsis xws luag?
Dermatitis yog lo lus dav dav uas piav txog kev ua rau tawv nqaij. Dermatitis yog ib yam mob uas muaj ntau yam ua rau thiab tshwm sim ntau yam. Nws feem ntau yog khaus, tawv nqaij qhuav los yog pob khaus ntawm daim tawv nqaij o, reddened
Npaum li cas ntawm daim tawv nqaij thiab daim tawv nqaij?
txog 2 hli Ua raws li qhov no hauv kev txiav txim siab, tuab npaum li cas ntawm cov epidermis nyob tom qab? Dermis thiab subcutaneous rog Nws yog tuab (nruab nrab 1 txog 4 hli) tshaj li daim tawv nqaij uas yog hais txog nyias li daim ntawv.
Dab tsi yog txoj haujlwm ntawm txheej txheej ntshiab hauv daim tawv nqaij?
Lub stratum lucidum yog lub luag haujlwm rau lub peev xwm ntawm daim tawv nqaij kom ncab. Nws kuj muaj cov protein uas yog lub luag haujlwm rau degeneration ntawm cov hlwb ntawm daim tawv nqaij. Cov txheej tuab no kuj txo qis qhov cuam tshuam ntawm kev sib txhuam ntawm daim tawv nqaij, tshwj xeeb tshaj yog nyob rau hauv cheeb tsam xws li ob txhais taw thiab xib teg ntawm tes