The flashcards below were created by user
stupidschool2012
on FreezingBlue Flashcards.
-
function of integumentary system
- skin and accessory organs
- protects the body from
- pathogens, chemicals, uv light, dessication, regulates temperature
-
hypodermis
found between the skin and underlying bone and muscle
-
epidermis
- outer layer
- lacks blood vessels and stratified squamous cells
- many layers- lower layers always dividing
- top layer-dead becuase too far from blood supply produce keratin
-
melanocytes
produce pigment melanin which absorbs UV light and gives skin color.
-
dermis
- under epidermis
- dense fibrous connective tissue
- contin blood vessel, sweat gland, hair follicles, receptors for touch pain pressure and temp
-
nails
grow at nail base from epithelial cells produce keratin
-
hair
forms from epidermal root in dermis that produces keratin
-
arrector pilli muscle
in dermis atached to hair shaft (goose bumps)
-
sebaceous gland
oil producing glands that frow from epithelial cells adjacent to hair
-
sweat glands
- all over skin
- regulate body temp- body heat is lost as sweat eveporates
-
mammary glands
specialized sweat glands
-
subcutaneous layer
loose connective tissue and adipose (fat)
|
|