EPITHELIUM CONNECTIVE TISSUE SKIN
INTEGUMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Skin aids in maintaining the calcium and phosphate levels of body by participating in the production of
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carotene
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keratin
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vitamin A
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vitamin D
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Explanation:
Detailed explanation-1: -In vitamin D deficiency, only 10%-15% of calcium and 50%-60% of phosphorus can be absorbed from ingested foods (6). Serum 25(OH)D levels are interpreted as follows; <10 ng/mL-severe deficiency, <20 ng/mL-deficiency, 20-30 ng/mL-insufficiency, >30 ng/mL-sufficient, and >150 ng/mL-intoxication (7, 8).
Detailed explanation-2: -The epidermis is the major source of vitamin D for the body. Under the influence of sunlight (ultraviolet radiation, action spectrum 280–320nM or UVB) 7-dehydrocholesterol in the epidermis is converted to vitamin D.
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