Body systems puzzle making assignment

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Across
  1. 3. a tube in the respiratory system that connects the pharynx to the lungs
  2. 5. transports nerves and signals to your brain
  3. 7. The organ that helps you breath
  4. 10. transports blood away from heart
  5. 12. this system bring oxygen to your body and removes carbon dioxide
  6. 13. system contains 206 bones
  7. 15. where bones meet
  8. 18. smallest bone in the skeleton
Down
  1. 1. this systems main purpose is to allow movement
  2. 2. carries messages to the brain
  3. 4. This system contains the heart and blood vessels
  4. 6. largest muscle in the human body
  5. 8. this system controls all feelings senses thoughts learning and memory
  6. 9. bones in the spine
  7. 11. the bodies hardest working muscle
  8. 14. allows extension of the forearm at the elbow
  9. 16. organ that allows the sense of smell
  10. 17. 3 pound organ