Respiratory System Crossword Puzzle

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Across
  1. 2. Whistling sound made during asthma
  2. 3. Sudden release of air and particles
  3. 4. Tiny air sacs where gas exchange occurs
  4. 6. Windpipe splits into two of these
  5. 8. Tiny blood vessels around air sacs
  6. 10. Where air finally ends up in the lungs
  7. 12. Used to sense smell and filter air
  8. 13. Helps filter air entering lungs
  9. 15. Air enters here besides the nose
  10. 16. Common irritant that causes allergic reaction
  11. 17. Type of smoke harmful to non-smokers
  12. 18. Disease often caused by smoking
  13. 20. Muscle movement forces air out
  14. 21. Muscle that helps lungs expand and contract
  15. 22. Device used by people with asthma
  16. 24. Coughing, wheezing, and chest tightness are signs of this
  17. 25. Cold or flu virus can cause this reaction
  18. 26. Traps dust and particles in the nose
  19. 27. Two large organs for breathing
Down
  1. 1. Nerve that sends sneeze signal to the brain
  2. 5. Long-lasting lung disease from smoking
  3. 7. Used to detect strong smells and sneeze triggers
  4. 8. Harmful gas we breathe out
  5. 9. Common cold affects this system
  6. 11. Involuntary burst of air from the nose and mouth
  7. 14. Tube that carries air to the lungs
  8. 19. Gas we need to survive
  9. 22. Muscle movement to take in air
  10. 23. A symptom of both cold and allergies