Across
- 1. famous athlete with sleep apnea
- 3. normal respiratory rate per minute
- 6. one inhalation + one exhalation
- 11. breathing out
- 14. windpipe
Down
- 2. air sacs where gas exchange occurs
- 4. cartilage that closes when you swallow food
- 5. voicebox
- 7. breathing in
- 8. periods of not breathing while sleeping
- 9. main part of the respiratory system
- 10. percussion on the back for mucus in the lungs
- 12. brings air from trachea to bronchioles
- 13. nostrils