Integumentary System Flashcards
consists of skin, hair, nails, and glands (sebaceous, sudoriferous, and ceruminous)
Integumentary System
outer layer of the skin made of layer of dead cells and inner layer of living cells
Epidermis
Skin contains :
hair follicles
sweat glands
blood vessels
inner most layer of the skin
Subcutaneous/hypodermis
middle layer of skin containing :
collagen blood vessels glands hair follicles Nerve endings
Dermis
provides a barrier between the body and outside pathogens
epidermis
contained by the epidermis and responsible for producing melanin
melanocytes
protects body from ultraviolet radiation from the sun
melanin
contains sensory nerve endings that allow the body to detect:
touch
change in temperature
pain
Dermis
Produced by UV light hitting skin
vitamin D
skin secretes the following from glands :
water
minerals
sweat
glands that produce sweat
sebaceous glands
Why do blood vessels dilate?
to carry blood to the skins surface to be cooled
What causes sweat to have a cooling effect?
Evaporation
Why do blood vessels constrict?
To keep blood away from the skin surface and keep it warmer
