Integumentary System

4. Hard part of the nail you can see.
7. Small, tube-like structure in the skin from which hair grows.
11. Protein found in nails and hair that help keep them strong.
12. Your body’s outer layer of protection. It includes the skin, hair, nails, and various glands and nerves found on or within the skin.
13. The largest organ.

1. Deepest part of the skin - cushions your muscles and bones, provides insulation to keep you warm, and helps protect your body from injury.
2. Area where new nail cells are produced.
3. Visible part of the hair that extends above the skin's surface.
5. Outermost layer of the skin.
6. Thin layer of skin located at the base of the nail, where the nail meets the skin.
8. Tiny openings that let sweat and oil exit the skin.
9. Thickest layer of the skin - contains: blood vessels, nerves, sweat glands, oil glands, and hair follicles.
10. Small, white, moon-shaped area at the bottom of the nail plate.