| A | B |
|---|
| Dermis | contains nerve endings, glands, and hair follicles |
| Epidermis | outer layer of skin |
| Subcutaneous (hypodermal) | serves as a storage repository for fat |
| keratin | tough protein found in the skin, hair and nails |
| melanin | pigment that protects the skin from harmful sun rays |
| melanocytes | specialized cells that produce melanin |
| sebacious glands | produce sebum (oil glands) |
| sudoriferous glands | sweat glands |
| macule | freckle |
| papule | pimple |
| pustule | whitehead |
| vesicle | small blister (chicken pox) |
| ulcer | depressed lesion on skin |
| arrector pili muscle | stimulates skin to pucker around hair |
| matrix | nailbed |
| papillae | small, nipple shaped elevations |
| eschar | blackened skin |
| wheal | hives |
| nodule | wart |
