INTEGUMENTERY SYSTEM
EPIDERMIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The skin pigment of the epidermis that protects against UV light and overproduction of vitamin D is called ____
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melanin
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nail matrix
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merkal cell
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None of the above
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Explanation:
Detailed explanation-1: -The outer layer of the skin has cells that contain the pigment melanin. Melanin protects skin from the sun’s ultraviolet rays. These can burn the skin and reduce its elasticity, leading to premature aging. People tan because sunlight causes the skin to produce more melanin and darken.
Detailed explanation-2: -Eating vitamin C–rich foods like citrus, berries, and leafy green vegetables may optimize melanin production.
Detailed explanation-3: -Vitamin D increases melanogenesis and the tyrosinase content of cultured human melanocytes by its antiapoptotic effect. However, a few growth-inhibitory effects on melanocytes were also reported.
There is 1 question to complete.