Cov plaub hau twg pom nyob sab nraud ntawm daim tawv nqaij?

Video: Cov plaub hau twg pom nyob sab nraud ntawm daim tawv nqaij?

2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44

Cov plaub hau ncej muaj ntawm ib feem ntawm cov plaub hau uas yog pom sab nraum ntawm daim tawv nqaij . Cov plaub hau ncej puab thiab cov hauv paus hniav yog tsim los ntawm 3 txheej txheej ntawm cov hlwb: cuticle, cortex, thiab medulla. Lub cuticle yog txheej sab nrauv ua los ntawm keratinocytes.

Raws li, qhov twg ntawm cov plaub hau tau muab tso rau ntawm daim tawv nqaij?

Cov plaub hau tau ua los ntawm cov kab keratinized tuag. Nws yog feem ntawm plaub hau uas tej yaam num los ntawm qhov chaw ntawm lub tawv nqaij . Nws yog feem ntawm plaub hau embedded hauv tawv nqaij . Nws nthuav tawm ntawm qhov chaw epidermal mus rau hauv dermis tab sis nyob rau hauv tawv taub hau, nws tuaj yeem txuas mus rau hauv hypodermis.

Tsis tas li ntawd, dab tsi yog txheej txheej ntawm cov plaub hau uas pom sab nraud ntawm tawv taub hau? tawv nqaij

Tsis tas li ntawd, cov hauv paus plaub hau nyob qhov twg hauv daim tawv nqaij?

Tus so ntawm plaub hau , uas yog anchored nyob rau hauv lub follicle, nyob hauv qab ntawm qhov chaw ntawm lub tawv nqaij thiab raug xa mus ua tus cov plaub hau . Cov cov plaub hau xaus sib sib zog nqus hauv lub dermis ntawm plaub hau noob, thiab suav nrog ib txheej ntawm mitotically active basal hlwb hu ua plaub hau matrix.

Qhov twg koj pom epidermal ridges nyob rau hauv daim tawv nqaij Lawv zoo li cas?

Ib qho qauv ntawm ridges thiab grooves ntawm qhov tob ntawm qhov daim tawv nqaij haum cov qauv sib txuam ntawm corrugations ntawm lub hauv paus dermis. Kev kwv yees ntawm daim tawv nqaij raug hu dermal papillae thiab cov ntawm daim tawv nqaij , epidermal ridges (pegs), vim lawv cov tsos nyob rau hauv ntsug seem ntawm lub 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

Cov hauv paus plaub hau nyob qhov twg ntawm daim tawv nqaij?

Cov plaub hau follicle yog ib yam khoom uas muaj nyob rau hauv daim tawv nqaij mammalian. Nws nyob hauv dermal txheej ntawm daim tawv nqaij thiab yog tsim los ntawm 20 hom cell sib txawv, txhua tus muaj cov haujlwm sib txawv. Cov hauv paus plaub hau tswj cov plaub hau kev loj hlob los ntawm kev sib cuam tshuam nyuaj ntawm cov tshuaj hormones, neuropeptides thiab lub cev tiv thaiv kab mob

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)