Across
- 2. largest organs in the respiratory system
- 4. small tubes that have alveoli at the end
- 8. any harmful addition to our atmosphere
- 9. illness where the bronchioles are restricted
- 10. another name for the windpipe
Down
- 1. tiny air sacs at the end of bronchioles
- 3. tooth _____ is a side effect of smoking
- 5. deadly disease caused by smoking
- 6. treatment for asthma and COPD
- 7. ___ exchange occurs in the alveoli