Across
- 2. The place where the exchange of O2 and CO2 occurs
- 6. The process of expelling air from the lungs
- 7. Inflammation of the bronchi due to viral infection
- 9. That's normal in and out
- 10. The process of breathing with the help of the diaphragm
Down
- 1. The process of moving oxygen and carbon dioxide in and out
- 3. The organ containing the Adam's apple and vocal cords
- 4. The process of breathing with the help of muscles between bones
- 5. The process of entering air into the lungs
- 8. Residual air that always fills the lungs