Across
- 1. Central, elongated shaft of a long bone
- 4. production of red blood cells
- 7. disease that weakens the bones
- 8. allows movement in the joints
- 10. smooth layer covering bone ends
- 12. central cavity of bones
- 14. dense solid bone forming outer layers
- 16. stores fat
- 18. honey comb type looking bone
- 20. form new bone cells and break down old ones
Down
- 2. flat bone
- 3. plate found in children joints
- 5. laying down new bone materials
- 6. an oblate shaped type bone cell
- 9. blood cell reproduction
- 11. cartilage turning into a bone
- 13. provides strength and rigidity to bones
- 15. strong fiberous protein in connective tissue
- 17. membrane that covers the outside of bones
- 19. works with osteoblast