Across
- 3. The sponge-like bone inside bones.
- 5. The bones that protect internal organs.
- 6. The fluid in joints.
- 9. Hard bone on the outside of the bone.
- 10. When one muscle contracts and the other one lengthens.
- 12. Where bones meet.
- 13. The body's support structure, made out of bone.
Down
- 1. The bones used for movement.
- 2. The soft, sponge-like tissue in the center of most bones.
- 4. Connects muscle to bone.
- 7. Connects bone to bone.
- 8. Contracts to make body parts move.
- 11. Connective tissue that stops bones from rubbing against each other.