Video: Lo lus hauv paus ntawm daim tawv nqaij yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
daim tawv nqaij . Cov lo lus epidermis los ntawm Greek hauv paus ib epi lub ntsiab lus "rau" thiab derma, uas txhais tau tias "tawv nqaij," txhais lus zoo nkauj zoo nkauj, txij li daim tawv nqaij yog txheej txheej sab nrauv ntawm lub ntsej muag ntawm lub cev, hauv luv luv - "daim tawv nqaij." Peb daim tawv nqaij yog peb qhov kev tiv thaiv tseem ceeb los ntawm kev phom sij ntawm ntiaj teb sab nrauv.
Hauv qhov no, dab tsi yog qhov txuas ntxiv ntawm daim tawv nqaij?
Epidermis suav nrog Greek ua ntej epi-, lub ntsiab lus "sab nraud;" yog li ntawd, cov daim tawv nqaij ua rau lub dermis hla, lossis txheej sab hauv ntawm daim tawv nqaij.
Qhov thib ob, dab tsi yog lwm lub npe rau daim tawv nqaij? Lwm lo lus rau epidermis . Lub npe tawv nqaij. Tuag los yog pob kws daim tawv nqaij.
Ib sab ntawm qhov no, kab mob epidermal txhais li cas?
Kev tshawb fawb cov ntsiab lus rau daim tawv nqaij Cov txheej txheej tiv thaiv ntawm daim tawv nqaij. Hauv cov tsiaj tsis muaj kab mob, cov daim tawv nqaij yog tsim los ntawm ib txheej txheej ntawm cov cell. Hauv cov vertebrates, nws tau tsim los ntawm ntau txheej ntawm cov cell thiab ua rau lub dermis hla. Txheej sab nraud ntawm cov hlwb ntawm cov qia, cov hauv paus hniav, thiab nplooj ntawm cov nroj tsuag.
Dab tsi yog pom hauv epidermis?
Cov txheej ntawm daim tawv nqaij : Cov daim tawv nqaij yog ua los ntawm 95% keratinocytes tab sis kuj tseem muaj melanocytes, Langerhans cells, Merkel cells, thiab mob hlwb. Lub stratum basale feem ntau yog ua los ntawm cov hauv paus keratinocyte hlwb, uas tuaj yeem suav tias yog qia hlwb 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.
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