the respiratory system

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Across
  1. 2. where cellular respiration takes place
  2. 3. inflammation of air passages
  3. 6. prevents food entering airway
  4. 7. whooping cough
  5. 10. lack of oxgyen in tissues
  6. 13. keeps alveoli from collapsing
  7. 15. collapses lung
Down
  1. 1. illness caused by smoking
  2. 4. test that measures air volume
  3. 5. spasm of the diaphragm
  4. 8. divides left and right nostrils
  5. 9. required for cellular respiration
  6. 11. space at the back of the oral cavity
  7. 12. voice box
  8. 14. air sacs