Video: Hom ntaub so ntswg twg ua rau daim tawv nqaij ntawm daim tawv nqaij?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Lub epidermis yog tsim los ntawm stratified squamous epithelium . Lub dermis muaj cov nqaij sib txuas, cov leeg nqaij du, thiab cov leeg nqaij.
Xav txog qhov no, hom ntaub so ntswg twg ua rau daim tawv nqaij?
Lub epidermis yog tsim los ntawm keratinized, stratified squamous epithelium. Nws yog ua los ntawm plaub lossis tsib txheej ntawm cov kab mob epithelial , nyob ntawm nws qhov chaw nyob hauv lub cev. Nws tsis muaj cov hlab ntsha hauv nws (piv txwv li, nws yog avascular).
Kuj Paub, hom cell twg ua rau feem ntau ntawm cov epidermis? keratinocytes nyob rau hauv cov ntshav
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog cov ntaub so ntswg ntawm lub epidermis quizlet?
Stratified Squamous Epithelium. Cov epidermis yog tsim los ntawm stratified squamous epithelium. Qhov no stratification muab kev ua haujlwm ciam teb nyob rau hauv lub epidermis.
Lub epidermis yog dab tsi?
Epidermis : Sab saum toj lossis txheej txheej ntawm ob txheej txheej tseem ceeb ntawm cov cell uas ua rau ntawm daim tawv nqaij. Cov epidermis yog feem ntau ua los ntawm tiaj, nplai zoo li cov cell hu ua squamous cells. Nyob rau hauv lub squamous hlwb yog cov hlwb puag ncig hu ua basal hlwb. Qhov tob tshaj plaws ntawm lub epidermis kuj muaj melanocytes.
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 ntawm cov ntaub so ntswg epithelial yog lub epidermis ntawm daim tawv nqaij?
Stratified squamous epithelium
Hom ntaub so ntswg sib txuas twg yog cov ntaub so ntswg?
Cov ntaub so ntswg reticular yog ib hom tshwj xeeb ntawm cov ntaub so ntswg sib txuas uas muaj nyob hauv ntau qhov chaw uas muaj cov ntsiab lus ntawm tes. Nws muaj ib tug ceg thiab mesh-zoo li tus qauv, feem ntau hu ua reticulum, vim yog kev npaj ntawm reticular fibers (reticulin). Cov fibers no yeej yog hom III collagen fibrils
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