Across
- 4. sections of spine
- 6. collar, shoulder, and hipbones
- 7. outside layer of bone
- 8. protects heart and lungs
- 9. works with skeletal system
- 14. protects the brain
- 15. second layer of bone
- 16. twelve pairs
- 18. protects spinal cord
- 19. ribs connect to
Down
- 1. smallest bone
- 2. middle of bone
- 3. longest bone
- 5. bones and cartilage
- 6. ear is made of
- 10. tough tissue
- 11. hand and feet bones
- 12. two or more bones meet
- 13. makes blood cells
- 17. body is made of