| A | B |
|---|
| Integumentary System | Related to the skin |
| Epidermis | the outermost covering of the epiethelial cells |
| dermis | true skin, made of connective tissue |
| epidermis | consists of 4 cell types and 5 layers |
| keratin | a protein that makes the skin dry and provides waterproofing |
| stratum corneum | surface layer of the epidermis |
| melanin | protein that protects skin from UV Rays |
| Corium | Also called the Dermis Layer |
| Subcutaneous Layer | LIes under the dermis, also called the hypodermal layer |
| Hair | an appendage of the skin; found on most parts of the body |
| alopecia | a genetic condition; baldness |
| nails | an appendage of the skin, covering the dorsal surfaces of the fingers and toes. |
| matrix | nail bed |
| sudoriferous glands | sweat glands |
| sweat glands | tube shaped forming a pore in the skin. may be activated by heat, pain, fear, and nervousness. |
| sebaceous glands | secretes an oily substance that protects the skin. |
| sebum | an oily substance secreted by the sebaceous glands |
| moist skin | microbes live only on this, they adhere to and grow on surfaces of dead cells. |
| papillae | ridges found on the lower edge of the stratum germinativum; arise from the dermal layer and push into the epidermis |
| stratum corneum | surface layer of the epidermis; consists of dead cells rich in keratin |
