Across
- 1. over secretion of thick mucus in the lungs; clogs respiratory tract
- 4. two branches at the bottom of the trachea
- 5. the pons and this area of the brain control breathing
- 7. inflammation of the pleura
- 8. voice box
- 10. lines the chest cavity
- 12. muscles between the ribs
- 13. the most superior part of the lungs
- 14. windpipe
Down
- 2. gas exchange at the alveoli and capillaries
- 3. collapsed lung
- 6. passageway between the vocal folds
- 9. tiny air sacs in the lungs
- 11. done shaped muscle between the thorax and abdomen
- 13. disease caused by swelling of the respiratory track causing difficult breathing
- 14. volume of air in one normal breath