Across
- 2. Cells that protect the body against infection
- 4. The skin below the nail
- 5. The hard outer layer that protects the hair shaft
- 6. A type of protein that is the basic component in hair, nails, and skin
- 7. Surrounds the medulla and is the main part of hair
Down
- 1. The larger part of the nail
- 3. The part that sticks out of the skin's surface
- 4. The pigment that gives skin color