Across
- 2. Chronic disease causing increased sensibility to lungs
- 4. Muscle group forming the diaphragm
- 7. Group using the positive pressure breathing method
- 8. Type of pressure breathing for mammals and reptiles
- 12. Air going into the lungs
Down
- 1. Moves air into the bronchus
- 3. Number of protection for the lung
- 5. Infection of the Larynx
- 6. Location for gas exchange
- 9. Terrestrial vertebrate with the best respiratory system
- 10. Part allowing speech
- 11. Normal volume of air when breathing
- 13. Entrance for air