Across
- 1. protects the lungs
- 5. is made of calcium
- 7. one of the functions of the skeletal system
- 8. protects the brain
- 9. the jawbone
Down
- 2. smallest bone in the body
- 3. more flexible, considered connective tissue
- 4. bone marrow is stored here
- 5. cells that are produced
- 6. largest bone in the body