Metabolism nke epidermis bụ na basal keratinocytes ji nwayọọ nwayọọ na-arịgo elu site na ọdịiche nke cell, ma mesịa nwụọ ka ọ ghọọ stratum corneum na-abụghị nke nukleed, wee daa.A na-ekwenyekarị na na mmụba nke afọ, akwa akwa basal na oyi akwa spinous na-agbagha, njikọ nke epidermis na dermis na-aghọ nke dị larịị, na ọkpụrụkpụ nke epidermis na-ebelata.Dị ka ihe mgbochi kachasị elu nke ahụ mmadụ, epidermis na-ejikọta ya na gburugburu ebe obibi ma na-emetụta ya ngwa ngwa site na ihe dị iche iche dị n'èzí.Epidermal ịka nká na-egosipụta n'ụzọ dị mfe mmetụta nke afọ na ihe ndị dị n'èzí na ịka nká mmadụ.
Na epidermis nke ịka nká akpụkpọ, mgbanwe nke nha, morphology na staining Njirimara nke basal oyi akwa cell na-abawanye, njikọ nke epidermis na dermis ji nwayọọ nwayọọ na-adị larịị, ntu epidermal na-aghọ shallower, na ọkpụrụkpụ nke epidermis na-ebelata.Ọkpụrụkpụ Epidermal na-ebelata ihe dịka 6.4% kwa afọ, ma na-agbada ọbụna ngwa ngwa n'ime ụmụ nwanyị.Ọkpụrụkpụ Epidermal na-ebelata ka afọ.Mgbanwe a na-apụtakarị n'ebe ndị ekpughere ekpughere, gụnyere ebe mgbapụ ihu, olu, aka, na aka ihu.Keratinocytes na-agbanwe ọdịdị dị ka afọ akpụkpọ ahụ, na-adị mkpụmkpụ na abụba, ebe keratinocytes na-ebuwanye ibu n'ihi obere mgbanwe nke epidermis, oge mmeghari nke epidermis na-eme agadi na-abawanye, ọrụ mgbasa ozi nke mkpụrụ ndụ epidermal na-ebelata, na epidermis na-adịwanye njọ.dị gịrịgịrị, na-eme ka akpụkpọ ahụ ghara ịdị nro na nhịahụ.
N'ihi mgbanwe ndị a morphological, nkwụsị nke epidermis-dermis adịghị esiri ike ma ghara imebi ike mpụga.Ọnụ ọgụgụ nke melanocytes ji nwayọọ nwayọọ na-ebelata mgbe afọ 30 gasịrị, ikike ịba ụba na-ebelata, ọrụ enzymatic nke melanocytes na-ebelata na ọnụego 8%-20% kwa afọ.Ọ bụ ezie na akpụkpọ ahụ adịghị mfe ịgbaji, melanocytes na-enwekarị mmụba nke mpaghara iji mepụta ntụpọ pigmenti, karịsịa n'ebe anwụ na-ekpuchi.A na-ebelatakwa mkpụrụ ndụ Langerhans, na-eme ka ọrụ ahụ ji alụso ọrịa ọgụ kwụsịlata ma nwee ike ibute ọrịa na-efe efe.
Akpụkpọ anụenwere ike iji igwe chọpụta wrinkles ihu ihu, udidi, mfu collagen, na nhịahụ ihu iji nyere aka ịchọpụta ihu akpụkpọ ịka nká.
Oge nzipu: Mee-12-2022
