Across
- 4. Soft, cone-shaped organs
- 5. Lipoprotein film that prevents alveoli from closing
- 6. Opening into larynx
- 7. Mucosal folds supported by elastic ligaments
- 8. Chronic and incurable disorder in which the alveoli are distended
- 10. Paired tubes inferior to the trachea
- 11. Voice box
Down
- 1. Viral or bacterial infection in which the alveoli fill with thick fluid
- 2. Called windpipe
- 3. Branched tubes that lead from bronchi to alveoli
- 9. Chamber posterior to oral cavity
- 12. Disease of the bronchi and bronchioles that is marked by breathlessness
- 13. Openings into the nasal cavities