Across
- 1. how many classifications of bones
- 4. upper arm bone
- 6. how many bones are in the body
- 7. what surrounds the heart and lungs
- 9. how many bones are a baby born with
Down
- 1. largest bone in the body
- 2. how does the system help organs
- 3. what cells do some bones make
- 5. what is the smallest bone
- 8. how many bones in a finger