Cov lus txhais lus ntawm cov yam ntxwv ntawm cov tawv nqaij yog peb cov qauv tawv nqaij. Nws yog nrog tib neeg thaum yug los. Nws yog tsim los ntawm cov tawv nqaij undulating grooves thiab tawv nqaij crests, uas feem ntau yog cov polygons ruaj khov thiab yuav luag tsis hloov pauv. Saib ncaj qha rau ntawm daim tawv nqaij liab qab, koj tuaj yeem pom cov qauv nyuaj, chaotic, nrog rau cov plaub hau zoo ntawm hnyav lossis lub teeb xim. Txawm li cas los xij, nrog rau lub sijhawm dhau mus, tib neeg txuas ntxiv laus, thiab daim tawv nqaij kuj maj mam laus ntuj. Tib lub sijhawm, daim tawv nqaij uas feem ntau raug kuj yuav raug kev txom nyem los ntawm sab nraud xws li kev ua qias tuaj ib puag ncig, thiab txuas ntxiv raug mob, thiab tus nqi ntawm kev puas tsuaj rau cov hlwb stratum corneum yuav hloov pauv. Tus lej ntawm cov tawv nqaij grooves thiab cov kab ntawm daim tawv nqaij hloov pauv, thiab cov duab ruaj khov kuj zoo li sib txuas, tus lej txo qis, thiab thaj chaw ntawm qhov chaw txuas ntxiv nthuav dav, yog li daim tawv nqaij dhau los ua wrinkled thiab ntxhib.
Feem ntau, ua ntej hnub nyoog 25 xyoos, daim tawv nqaij yuav du, ci, thiab ywj. Txawm li cas los xij, tom qab ntawd, daim tawv nqaij yuav pib laus zuj zus thiab cov tsos mob ntawm lub cev feem ntau hloov pauv.
1. Cov tawv nqaij noo thiab daim tawv nqaij thaiv
Feem ntau ntawm cov kev tshawb fawb txog daim tawv nqaij ntxhib tsom mus rau lub luag haujlwm ntawm stratum corneum, xws li lub luag haujlwm ntawm kev tuav dej thiab lub luag haujlwm ntawm daim tawv nqaij thaiv. Xws li kev kawm txog cov dej noo, cov yam ntxwv ntuj tsim kom muaj dej noo, thiab kev hloov pauv lipid ntawm cov hlwb stratum corneum. Kev poob dej noo yog qhov hnyav heev, ua rau daim tawv nqaij ua matted thiab grainy. Kev poob ntawm cov hlwb epidermal yog disordered, ua rau muaj dandruff thiab nplai. Cov dej noo ntawm daim tawv nqaij yog ze rau cov dej noo, luster thiab fineness ntawm daim tawv nqaij. Lub stratum corneum du, ntau dua dej cuam tshuam tsis tu ncua los tsim kom muaj lub teeb ci ntsa iab, thaum lub stratum corneum qhuav, scaly cuam tshuam rau hauv txoj kev tsis-specular uas ua rau daim tawv nqaij zoo li grey. Nrog cov dej noo tsawg hauv daim tawv nqaij, daim tawv nqaij ua qhuav thiab ntxhib, thiab daim tawv nqaij yog dull.
Daim tawv nqaij uas tsis muaj zog tiv thaiv zoo li lub kaus tawg. Tsis yog tsuas yog cov dej endogenous ua pa yooj yim xwb, tab sis cov khoom sab nraud yooj yim nkag mus, thiab kev o kuj yooj yim tshwm sim. Xws li cov teeb meem ntawm daim tawv nqaij uas cuam tshuam nrog kev o: khaus, ntxhib, tev tawv, khaus, liab, thiab lwm yam. Cov teeb meem ntawm daim tawv nqaij rov tshwm sim tsis yog los ntawm hom tawv nqaij tab sis los ntawm kev o ntawm daim tawv nqaij ntev.
Cov epidermis uas laus zuj zus pom tias nws tuab zuj zus thaum qhov kev puas tsuaj me me xwb, thiab nws kuj lwj zuj zus thaum qhov kev puas tsuaj loj heev. Cov hlwb ntawm cov txheej basal tau hloov pauv los ntawm qhov tsis zoo, thiab muaj ntau cov hlwb dyskeratotic.
2. Lub dermis poob nws qhov elasticity
Qhov tawv nqaij tsis zoo muaj feem cuam tshuam nrog qhov elasticity ntawm daim tawv nqaij. Qhov elasticity ntawm daim tawv nqaij txo qis, qhov tsis muaj zog ntawm daim tawv nqaij lossis qhov wrinkles tshwm sim, thiab qhov roughness ntawm daim tawv nqaij nce ntxiv. Fibroblasts yog cov khoom tseem ceeb tshaj plaws hauv dermis ntawm daim tawv nqaij thiab ua lub luag haujlwm tseem ceeb hauv kev tsim cov secretory fibers thiab extracellular matrix. Nws ua lub luag haujlwm tseem ceeb hauv kev kho cov qhov txhab ntawm cov ntaub so ntswg. Nrog rau hnub nyoog, qhov tuab ntawm daim tawv nqaij txo qis raws li cov ntsiab lus elastic fiber hauv daim tawv nqaij maj mam txo qis. Kev laus ntawm daim tawv nqaij yog qhov tseem ceeb, uas tuaj yeem pom tau tias yog daim tawv nqaij qhuav thiab ntxhib, nce thiab tob wrinkles, daim tawv nqaij xoob, thiab txo qis elasticity. Hnub nyoog yog nrog los ntawm kev txo qis ntawm cov protein ntxiv ntawm daim tawv nqaij, tsis muaj kev ruaj khov hauv daim tawv nqaij, thiab nce ntxiv ntawm qhov tob ntawm daim tawv nqaij ua rau pom cov wrinkles.
Yog li ntawd, ua ntej cov teeb meem ntawm daim tawv nqaij tshwm sim, peb tseem muaj ntau yam ua. Piv txwv li,tshuaj ntsuam tawv nqaijtuaj yeem pab peb qeeb lossis daws cov teeb meem ntawm daim tawv nqaij rau qee qhov ua ntej cov teeb meem ntawm daim tawv nqaij tshwm sim tag nrho!
Lub sijhawm tshaj tawm: Lub Kaum Hli-12-2022
