Dab tsi yog lub luag haujlwm tseem ceeb ntawm epidermis?
Dab tsi yog lub luag haujlwm tseem ceeb ntawm epidermis?

Video: Dab tsi yog lub luag haujlwm tseem ceeb ntawm epidermis?

Video: Dab tsi yog lub luag haujlwm tseem ceeb ntawm epidermis?
Video: 💥 Xov Xwm 21/3/2022 - NATO Thiab Meskas Tseem Tsaug Zog Ces Ukraine Kaws Poob Rau Lavxias Zaum No 2024, Lub Xya hli ntuj
Anonim

Nws tsim ib thaj tsam ntawm cov nroj tsuag thiab ib puag ncig sab nraud. Cov daim tawv nqaij pab ntau yam kev ua haujlwm : nws tiv thaiv cov dej poob, tswj cov pa pauv roj, secretes metabolic compounds, thiab (tshwj xeeb tshaj yog nyob rau hauv cov hauv paus hniav) absorbs dej thiab mineral as-ham.

Ntxiv mus, dab tsi yog lub luag haujlwm ntawm epidermis?

Cov daim tawv nqaij , txheej txheej ntawm tawv nqaij , muab cov thaiv thaiv dej tsis zoo thiab tsim peb tawv nqaij suab. Lub dermis, hauv qab lub daim tawv nqaij , muaj cov tawv nqaij sib txuas, cov hauv paus plaub hau, thiab cov qog hws. Qhov tob subcutaneous cov ntaub so ntswg (hypodermis) yog ua los ntawm cov rog thiab cov ntaub so ntswg sib txuas.

Ib tug kuj yuav nug, dab tsi yog lub luag haujlwm ntawm dermis thiab epidermis? Muaj nuj nqi. Lub luag haujlwm tseem ceeb ntawm lub dermis yog los txhawb lub epidermis thiab pab kom cov tawv nqaij kom vam meej. Nws kuj ua tus lej ntawm lwm lub luag haujlwm vim tias muaj cov hlab ntshav xaus, qog hws, qog sebaceous qog cov hauv paus plaub hau, thiab cov hlab ntshav.

Ib yam li ntawd, tib neeg nug, qhov ua haujlwm ntawm lub epidermis yog dab tsi?

Nyob rau saum lub nplooj , qhov no yog hu ua lub Upper epidermis. Qhov no yog ib txheej txheej ntawm cov cell pom ncaj qha hauv qab cov cuticle. Nws pab tiv thaiv cov nplooj los ntawm kev pab tiv thaiv kev poob dej thiab muab ib txheej ntxiv ntawm sab nraud thiab sab hauv nplooj.

Dab tsi yog pom nyob rau hauv lub epidermis?

Txheej ntawm cov daim tawv nqaij : Cov daim tawv nqaij yog tsim los ntawm 95% keratinocytes tab sis kuj muaj melanocytes, Langerhans hlwb, Merkel hlwb, thiab inflammatory cells. Lub stratum basale feem ntau yog tsim los ntawm cov basal keratinocyte hlwb, uas tuaj yeem suav hais tias yog cov qia hlwb ntawm lub cev. daim tawv nqaij.

Pom zoo: