GENERAL HISTOLOGY

INTEGUMENTERY SYSTEM

INTEGUMENTERY SYSTEM MISCELLENOUS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Vitamin produced in the skin when exposed to UV light
A
Vitamin A
B
Vitamin B
C
Vitamin C
D
Vitamin D
Explanation: 

Detailed explanation-1: -Vitamin D is the sunshine vitamin that has been produced on this earth for more than 500 million years. During exposure to sunlight 7-dehydrocholesterol in the skin absorbs UV B radiation and is converted to previtamin D3 which in turn isomerizes into vitamin D3.

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.

Detailed explanation-3: -Vitamin D helps repair skin damage and prevent infections as a result of skin injuries. Topical application can relieve symptoms of psoriasis including itchy and flaky skin. Additionally, Vitamin D has strong anti-inflammatory properties which are useful in treating burns, skin damage, and even stretch marks.

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