Skin Flashcards
epidermis
stratified squamos epithelium
stratum basal
growth and divison of cells
keratinocyte
a lot of divison, contain keratin
Melanocyte
secret melanin to the ketratinocyte, increase production rates of secretion when exposed to uv radiation
stratum spinosum
far away from blood supply= keratinocyte to starve
startum granulosum
darkness of keratin
stratum lucidum
very thin layer (only in hairless skin)
stratum corneum
totally dead cells only membrane and keratin left
Melanoma
tumors from the over secretion of the melanocyte
Dermis
loose irregular connective tissue has a papillary layer and reticular layer
Temperature regulation
increase blood flow to dermis= loose heat
decrease blood flow to dermis=insulation
Eocrine gland
secrete electrolytes onto dermis (sweat gland)
Apocrine gland
secret pheromones and fat onto hypodermis
Sweat gland
turn plasma from blood into water
Stretch marks
scarring within due increase volume body growth and skin cant grow fast enough