Across
- 7. formation and development of blood cells
- 10. straight
- 11. vertebra; spine
- 13. bone marrow
- 16. end of a long bone
- 18. broken bone that breaks through the skin
- 20. pore; duct; small opening
- 22. fluid-filled sac on the sides of the joint to help with friction
- 23. dense bone used to create the hard structure of the skeleton
- 24. clear, thick fluid that helps to lubricate the joint
- 25. rib
- 28. broken bone that does not break through the skin
Down
- 1. junction between the bones of the skull
- 2. sac
- 3. chest
- 4. cartilage
- 5. wrist
- 6. foot
- 8. porous bone usually at the epiphysis; surrounded by dense bone
- 9. mature bone cells
- 12. bone-forming cells
- 14. spongy tissue in the middle of long bones that help produce red blood cells
- 15. absorb bone tissue during growth/healing
- 17. holes in the bone for blood vessels and nerves to pass through
- 19. ankle
- 21. skull
- 24. crooked; bent
- 26. joint
- 27. bone