Skeletal system

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Across
  1. 3. Allows us to move our head sideways.
  2. 4. One bone fits into the socket of another bone
  3. 6. Allows back and forth movement
  4. 8. What protects the heart and lungs?
  5. 9. Element required to make bones
  6. 10. What helps us move?
  7. 14. Long and flexible bony structure.
  8. 18. Bone present in the upper arm
  9. 19. Movement controlled by us
  10. 20. Helps us to chew the food
Down
  1. 1. A bony ring like structure
  2. 2. A long flat which holds the ribs
  3. 5. Joint that can bend
  4. 7. What allows the bones to glide?
  5. 11. A delicate structure protected by backbone.
  6. 12. What protects the brain?
  7. 13. Connects bones to muscles
  8. 15. Soft tissue present all over the body.
  9. 16. The longest bone in the body
  10. 17. What helps us to keep the body straight?