Respiratory System Cross Word Puzzle

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