keratinization
ker·a·tin·i·za·tion
K5039250 (kĕr′ə-tə-nĭ-zā′shən)Noun | 1. | keratinization - organic process by which keratin is deposited in cells and the cells become horny (as in nails and hair) |
单词 | keratinization | |||
释义 | keratinizationker·a·tin·i·za·tionK5039250 (kĕr′ə-tə-nĭ-zā′shən)
KeratinizationKeratinizationthe accumulation of keratins—a type of protein—in cells of the epithelial tissue in vertebrates and humans. Keratinization mainly occurs within the surface layers of the skin—the epidermis and all its derivatives (scales, bill, plumage, wool, hooves, horns, hair, and nails). In humans the keratinized cells in the surface layers of the skin are converted into squamules, which form the cornified layer of the epidermis. This layer is highly elastic and conducts heat poorly, thus protecting the underlying layers of the skin from such harmful factors as physical injury, desiccation, and bacterial infection. Keratinization is most evident on the palms and soles, less so at flexures. (For disorders in the keratinization process, seeHYPERKERATOSIS.) keratinizationkeratinization[ker″ah-tin″ĭ-za´shun]ker·a·tin·i·za·tion(ker'ă-tin'i-zā'shŭn),keratinization(kĕr′ə-tə-nĭ-zā′shən)ker·a·tin·i·za·tion(ker'ă-tin-ī-zā'shŭn)Synonym(s): cornification. keratinizationThe formation of, or conversion into, keratin. This normally occurs to a limited degree in the outer layers of the skin, but is especially prominent when skin is exposed to constant localized pressure. Corns and callosities are areas of keratinization. Also known as cornification or hornification.ker·a·tin·i·za·tion(ker'ă-tin-ī-zā'shŭn)Synonym(s): cornification. Patient discussion about keratinizationQ. skins does excrete oil and keratin what exactly is the whitish cape up that you can squeeze out from underskin keratinization
Synonyms for keratinization
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