Across
- 4. long flat bone that forms center front of chest wall
- 6. makes bone hard and resistant to crushing
- 9. thin layer of cells that line the medullary cavity
- 11. bone-forming cells
- 13. tightly packed tissue
- 17. openings along the lamellae
- 19. marrow made mostly of fat containing stem cells that can become cartilage, fat, or bone cells
- 21. makes up wall of diaphysis
- 22. give compact bone its stiffness
- 24. hollow tube made of compact bone
Down
- 1. formation of a bone
- 2. blood cell formation
- 3. marrow containing blood stem cells that can become red blood cells, white blood cells, or platelets
- 5. channels found between the lacunae of bone cells
- 7. curved bone in a person's chest
- 8. gives bone its strength and resilience
- 10. made of spongy bone and a thin layer of compact bone
- 12. triangular structure made of 5 fused vertabrae
- 14. composed of the cranium and facial bones
- 15. bone-resorbing cells
- 16. branching bony plates that make up spongy bone
- 18. flat bones of the skull
- 20. fills medullary cavity
- 22. large vertabrae that make up the spine,L1-L5
- 23. tailbone, 4 fused vertabrae