Across
- 4. works with the bones to help the body to move
- 7. protects our spinal cord
- 8. protects the brain
- 10. protects some organs, supports the body and give it's shape
Down
- 1. freely movable joints
- 2. several organs work together
- 3. slightly movable joints
- 5. protects our lungs and heart
- 6. immovable joints
- 9. a group of the same kind of cells