INTEGUMENTERY SYSTEM
EPIDERMIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Produce pigment in the skin
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Provide protection to the epidermis
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Produce Keratin, the protein of the epidermis
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None of the above
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Detailed explanation-1: -As the most dominant cell type constituting the epidermis, keratinocytes play multiple roles essential for skin repair. They are the executors of the re-epithelialization process, whereby keratinocytes migrate, proliferate, and differentiate to restore the epidermal barrier.
Detailed explanation-2: -Keratinocytes are cells that make up over 90% of the epidermis or the outer layer of the skin. They produce an secrete a protein called “keratin” which is also called an intermediate filament protein, that holds the skin cells and layers together.
Detailed explanation-3: -Keratinocytes are the predominant cell type of epidermis and originate in the basal layer, produce keratin, and are responsible for the formation of the epidermal water barrier by making and secreting lipids.