Across
- 2. divides left and right nostrils
- 10. voice box
- 11. test that measures air volume
- 13. where cellular respiration takes place
- 16. inflammation of air passages
Down
- 1. whooping cough
- 3. space at the back of the oral cavity
- 4. air sacs
- 5. illness caused by smoking
- 6. keeps alveoli from collapsing
- 7. collapsed lung
- 8. lack of oxygen in tissues
- 9. spasm of the diaphragm
- 12. fluid build-up in air sacs, caused by altitude sickness
- 14. bones that divide the nasal cavity
- 15. required for cellular respiration