Respiratory System Cross Word Puzzle

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Across
  1. 4. Site for O2-CO2 exchange.
  2. 6. Helps keep the lungs visible.
  3. 8. Moves the ribs during breathing.
  4. 12. Lets air reach the alveoli.
  5. 14. Channels the air down the air ways.
Down
  1. 1. Keeps food from entering the airways.
  2. 2. Helps pump the lung.
  3. 3. Way for air to enter the body.
  4. 5. Allows air to enter the left lung.
  5. 7. Purifies, humidfies the air
  6. 9. Lets air and food the enter.
  7. 10. Carries out O2-CO2 gas exchange.
  8. 11. Channels the air toward the left/right bronchi.
  9. 13. Letting the air pass through speech production.
  10. 15. Protects the respiratory organs.