human skeletal system

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Across
  1. 3. what is the bone that protects the brain?
  2. 6. the most painful bone to break?
  3. 8. protect the lungs?
Down
  1. 1. the thigh bone?
  2. 2. bone next to fibula?
  3. 4. jaw bone?
  4. 5. holds ribs together?
  5. 7. your tail bone?