Functions of the skin Flashcards
1
Q
What are the 6 functions of the skin?
A
1) . Thermoregulation:
a) . vasoconstriction or dilation
b) . sweat gland activity
2) . Absorption:
a) . uptake limited due to waxy sebum and keratinization
b) . some diffusion of gases and fat-soluble drugs
3) .Hydroregulation: guards against water loss or gain
4) . Protection:
a) . chemical barrier–sebum, keratin, and melanin
b) . physical barrier–stratum corneum and hair
c) . protection against–bacteria, parasites, U.V. radiation, noxious chemicals, and friction
5) . Reception:
a) . sensory nerves and receptors in dermis
b) . sensations of–temperature, touch, pressure, and pain
6) . synthesis of vitamin D
