bones

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Across
  1. 1. hard smooth layer protects tissue
  2. 3. has a weird shape
  3. 6. kneecaps
  4. 7. protects your lungs and heart
  5. 8. squat cube shape
  6. 11. feet bone
  7. 13. collar bone
  8. 16. cells that maintain bone tissue by controlling the mineral and calcium content
  9. 18. cells that build bone tissue
  10. 20. lets bone be strong and light weight
  11. 22. protects your brain
Down
  1. 2. hand bones
  2. 4. used for clotting
  3. 5. feet bone
  4. 7. carry oxygen a round the body
  5. 9. make up the body's immune system
  6. 10. cells that break down old bone tissue
  7. 12. shin bone
  8. 14. feet bone
  9. 15. hip bone
  10. 17. bones with a long thin shape
  11. 19. thigh bone
  12. 21. flattened and broad surface