Across
- 5. 12 pairs, 24 total
- 9. mature bone cells
- 10. does not penetrate the skin
- 11. breast bone
- 12. encloses the brain
- 13. shoulder blade
- 14. form the longitudinal axis
- 17. bone made of small pieces and open space
- 18. bone destroying cells
- 19. broken bone penetrates the skin
- 21. broken bone ends are forced into each other
- 23. articulates with occipital condyles
Down
- 1. bone not connected by sutures
- 2. protects the heart and lungs
- 3. butterfly shaped
- 4. function of the system
- 6. bone dense
- 7. lies anterior to the sphenoid
- 8. protects the spinal cord and nerves
- 10. bone breaks into many fragments
- 15. bone forming cells
- 16. cheek bone
- 20. bridge of the nose
- 22. collarbone