| A | B |
| Integumentary System | The skin and it's appendages |
| Epidermis | outermost covering of the skin |
| Avascular | without blood vessels |
| Dermis | "true skin"; inner layer of the skin |
| Papillae | ridges in the stratum germinativum that makes our fingerprints |
| Hair follicle | the area where the hair root is embedded |
| Alopecia | permanent hair loss, baldness |
| Arrector pili muscle | attached to the hair follicle that produces "goosebumps" |
| Sudoriferous glands | sweat glands |
| Sebaceous glands | oil glands |
| Sebum | thick oily substance produced by sebaceous glands |
| Hypothermia | low body temperature |
| Hyperthermia | body temperature rises above normal |
| Skin Cancer | associated with exposure to UV light and most common type of cancer in humans |
| Cryosurgery | destruction of tissue by freezing using liquid nitrogen |
| Rule of Nines | measures percent of body burned |
| Decubitus ulcers | pressure sores caused by constantly lying or sitting in the same position without shifting weight |
| Keratin | protein that keeps skin dry and waterproof |
| Melanocytes | cells that make melanin |
| Melanin | protects skin against ultraviolet rays of the sun |