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chapter 6 vocab
| Term | Definition |
|---|---|
| Epididermis | Outer most, avasuclar layer of skin(lacks blood), epithelial tissue |
| deermis | below the epidermis, containing connective tissue |
| subcutanaoues layer | below the dermis, composed of fat tissue and connective tissue |
| keratinization | epidermis cells fill with keratin |
| melanocyte | cell in the epidermis that produces the pigment melanin |
| melanin | a dark pigment responsible for the color or or skin, ect. |
| holocrine glands | glands that release their secretion by the rupture of the entire gland cell |
| sebum | an oily substance secreted by sebaceous glands that lubricates skin and prevents water loss |
| sudoriferous glands | sweat glands |
| apocrine glands | sweat gland in the armpits and groin, milky secretion and body odor |
| radiation | heat via infrared waves |
| conduction | heat transfer through direct contact |
| convention | heat transfer through air |
| evaporation | gas to liquid |
| negative feedback | a control mechanism that counteracts a change in a varirable |
| hypothermia | body temp drops below normal |
| hyperthermia | body temp is above normal |
| albinism | disorder due to lack of melanin |
| cyanosis | bluish or purplish coloration of skin, due to lack of oxygen |
| jaundice | yellowing of the skin |
| inflammation | part of body becomes swollen , reddened, hot, ect. |
| autograft | a graft of tissue from one point to snother on the same individuals body |
| homograft | a graft of tissue from a donor of the same species as the recipient, NOT THE SAME INDIVIDUAL |
| eccrine | type of sweat galnd that produces watery secreation |