Skeletal System Crossword puzzle

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Across
  1. 4. Bone in the upper arm.
  2. 9. a bone in the lower leg. Known as the shinbone.
  3. 10. protects the bladder and the uterus. Also connects two of the strongest bones in the body.
  4. 11. bone in the forearm. extends from elbow to pinky
  5. 13. foot bones
  6. 15. Shoulder blades. Only bone in the body that is horizontal in position
  7. 16. a bone in the lower leg. Runs parallel to shinbone
  8. 17. Made of collagen and calcium
Down
  1. 1. toes or fingers
  2. 2. 33 irregular bones that cover the spinal cord.
  3. 3. ankle bone
  4. 5. Smallest bone of the internal ear. 2.5mm-3.3mm. Smallest bone of the body.
  5. 6. bones in the palm/hand
  6. 7. wrist bones
  7. 8. Long flat bone that protects the heart and lungs behind it.
  8. 12. a bone in the forearm. extends from elbow to thumb
  9. 14. another name for the skull which protects the brain.