Melanin feem ntau nyob qhov twg?

Video: Melanin feem ntau nyob qhov twg?

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

Cov txheej txheem subcutaneous yog nruab nrab ntawm cov tawv nqaij thiab cov tawv nqaij. 9. Nyob rau hauv ib tug mob hu ua incontinentia pigmenti, daim tawv nqaij muaj tob tsaus splotches, vim melanin uas nkag mus rau hauv lub dermis. Feem ntau , melanin yog raug kaw mus rau epidermis.

Tom qab ntawd, ib tug kuj yuav nug, dab tsi txiav txim seb cov xim ntawm daim tawv nqaij quizlet?

Peb physiological yam uas cuam tshuam rau xim tawv nqaij yog: ntim ntawm cov ntshav nyob rau hauv cov hlab ntsha dermal, carotene nyob rau hauv subcutaneous txheej, thiab ntau yam kab mob. keratinized heev thaum lawv tuag vim tsis muaj ntshav txaus. Cov leeg arrector pili yog tsim los ntawm cov leeg nqaij striated.

Kuj Paub, thaum tus neeg tawv nqaij ncaj ncees blushes Vim li cas nws lossis nws daim tawv nqaij tig liab? A) Cov ntshav muab rau tawv nqaij nce.

Ib yam li ntawd, Keratinization yog dab tsi thiab nws tshwm sim qhov twg?

Keratinization hais txog cov xwm txheej cytoplasmic uas tshwm sim Nyob rau hauv lub cytoplasm ntawm epidermal keratinocytes thaum lub sij hawm lawv terminal sib txawv. Nws koom nrog kev tsim cov keratin polypeptides thiab lawv cov polymerization rau hauv keratin intermediate filaments (tonofilaments).

Dab tsi tshwm sim tshwm sim ua ntej tom qab daim ntawv scab?

Cov scab ib ntus restores kev ncaj ncees ntawm lub epidermis thiab txwv tsis pub nkag mus ntawm microorganisms. Tom qab cov scab yog tsim , cov cell ntawm stratum basale pib faib los ntawm mitosis thiab txav mus rau ntawm ntug ntawm scab . Ib lub lis piam tom qab qhov raug mob, cov npoo ntawm qhov txhab raug rub ua ke los ntawm kev cog lus.

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