Video: Vim li cas cov txheej txheej ntawm cov tawv nqaij tuag?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov txheej txheej ntawm cov epidermis muaj cov tuag hlwb tias yog ib txwm flaking los yog ntxuav tawm. Cov no yog hloov los ntawm tshiab hlwb tsim nyob rau hauv qis qis ntawm cov epidermis, uas txav mus rau sab saud sab nraum ntawm tawv nqaij . Raws li lawv ua yog li, cov hlwb ua tsaug thiab tuag.
Los ntawm qhov ntawd, txheej txheej ntawm cov tawv nqaij sab nraud yog dab tsi?
daim tawv nqaij
dab tsi ua rau koj cov tawv nqaij nyob? Tawv nqaij Cov Kev Hloov Uas Tuaj Nrog Hnub Nyoog Tawv nqaij ua slack. Kev poob ntawm cov ntaub so ntswg elastic (elastin) hauv lub cev tawv nqaij nrog hnub nyoog ua cov tawv nqaij kom dai xoob xoob. Tawv nqaij dhau los ua pob tshab Qhov no tshwm sim los ntawm kev ua thinning ntawm daim tawv nqaij (txheej txheej ntawm lub tawv nqaij ).
Ib yam li ntawd, tib neeg nug, yog txheej txheej ntawm daim tawv nqaij tuag los yog ciaj sia?
Cov txheej txheej ntawm koj tawv nqaij muaj cov cell uas yog tuag . Qhov tseeb, sab nrauv 25 txog 30 teev txheej ntawm koj tawv nqaij suav nrog tuag cov cell uas tsis ua dab tsi dhau qhov muab a lub cev barrier uas ua kom dej hauv thiab tshuaj lom neeg tawm.
Cov tawv nqaij tuag mus qhov twg?
Cov no hlwb hu ua 'keratinocytes', thiab muaj cov protein fibrous keratin. Lawv tsim nyob rau hauv lub hauv paus ntawm lub epidermis, thiab maj mam txav mus txog ntawm tawv nqaij kom txog rau thaum lawv ncav cuag sab nrauv, qhov chaw uas lawv tuag, tsim dab tsi hu ua "stratum corneum" - nyob ib ncig ntawm 15-20 txheej. cov hlwb tuag.
Pom zoo:
Dab tsi yog txheej txheej sab saum toj ntawm daim tawv nqaij nyob ib sab ntawm daim tawv nqaij?
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