What is one important function of melanin?   A. Resets the diurnal biological clock   B. Increases the amount of blood vessels   C. Causes the skin to become cooler   D. Absorbs harmful radiation   E. Strengthens the skin or eyes

All of the following would have thin skin EXCEPT:     A. scalp   B. forehead   C. soles of feet   D. back of the hand

Use the list below to determine the correct terms. Keratinocytes start producing A. Shaft ,which makes our skin tough and water resistant, and ,which promotes the dehydration of skin cells. The reticular layer within our B. Hair bulb, hair papilla ,contains a network of collagen, reticular, and elastic fibers. The hypodermis, because of its c. Arrector Pili. large amount of acts as an energy reservoir and thermal insulation. The _is the part of the D. Keratin, Keratohyalin hair that protrudes from the epidermis. The deepest portion of the hair E. Dermis follicle is made of ,the inner portion of this structure encompasses the The papilla's surrounding layer isF. Nail root composed of the

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