Skeletal System

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Across
  1. 2. the outer surface of the bone
  2. 4. most people have 12 pairs of me
  3. 6. made up of 33 bones and is in the back
  4. 7. 206 of this in the adult human body
  5. 9. wear this to protect your skull
  6. 10. each arm is attached to this
Down
  1. 1. the first 7 ribs are attached to the front of me
  2. 3. a bone below the elbow
  3. 5. protects the brain
  4. 8. the longest bone in the body