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Ch 8: Skin Disorders
Terms in this set (141)
What are the functions of the skin?
acts as first line of defense
prevents excessive fluid loss
controls body temp
active in sensory perception
synthesizes vitamin D
How does the skin control body temp?
-secretion and evaporation of sweat
How is skin active in sensory perception?
it is important as defense against environmental hazards
How does skin synthesize vitamin D?
on exposure to small amount of ultraviolet light
layers of skin
-subcutaneous tissue (hypodermis)
How many layers of epidermis are there and what are they?
5 layers that vary in thickness
What does keratin do and where would you find it?
waterproofs the skin and it is in the epidermis
skin pigment that determines skin color
-production depends on multiple genes and environment
Abnormalities of the epidermis
lack of melanin production
small areas of hypopigmentation
patches of darker skin
What are the layers of epidermis from bottom to top?
What layer of epidermis does mitotic activity happen?
what layer of epidermis are cells connected by desmosomes and protein synthesis happens?
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