The most difficult skin riddlesMedicine quiz
Melasma is also known as?
mask of pregnancy
Melasma is a tan or dark skin discoloration. Melasma is thought to be caused by sun exposure, genetic predisposition, hormone changes, and skin irritation. Although it can affect anyone, melasma is particularly common in women, especially pregnant women and those who are taking oral or patch contraceptives or hormone replacement therapy (HRT) medication
What are the symptoms of adermatoglyphia?
Purple color of nails
Small pimples all over the body surface
Lack of eyebrows
Lack of fingerprints
Adermatoglyphia is a genetic disorder which causes a person to have no fingerprints. There are only four known families in the world affected by this condition.
The opposite of albinism is called..?
The term melanism refers to black pigment in the skin or its appendages. Most commonly, dark individuals become fitter to survive and reproduce in their environment as they are better camouflaged. Adaptive melanism has been shown to occur in a variety of animals, including mammals such as squirrels, many felines and canids, and coral snakes.Melanism, meaning a mutation that results in completely dark skin, does not exist in humans.
Which vitamin is produced in the skin during sun bathing?
Vitamin D is synthesized from cholesterol in the skin with the help of the natural ultraviolet wavelength of sunlight. Supplementation of vitamin D is recommended only for sun-deprived people (eg. elderly or living in the Far North).