Respiratory System Crossword

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Across
  1. 5. The type of cells that secrete mucus
  2. 9. These drain into the nasal cavity
  3. 11. Sits inferior to the hyoid bone; made of cartilage
  4. 13. A problem caused by a diaphragm contracting out of rhythm
  5. 15. Surrounds the glottis
  6. 19. What happens when the diaphragm contracts and flattens due to pressure difference
  7. 20. Inferior air entry point
  8. 21. Number of lobes in the left lung
  9. 23. Warms and moistens the air coming in through the nostrils
Down
  1. 1. Surrounded by C-shaped rings to avoid collapse; windpipe
  2. 2. The part of the respiratory system that branches into bronchioles
  3. 3. Helps us to exchange gases from the body
  4. 4. The blood vessel that covers the alveoli
  5. 6. Flap above the larynx that helps to close the passageway to the larynx
  6. 7. Contain antigens and help to fight off pathogens entering the pharynx
  7. 8. What bronchioles do during an asthma attack
  8. 10. What happens when the diaphragm relaxes due to pressure difference
  9. 12. Number of lobes in the right lung
  10. 14. The double membrane covering the lungs
  11. 16. Have odor sensors in the nose
  12. 17. The common passageway for air and water
  13. 18. Passageway into the larynx
  14. 22. Superior air entry point