Across
- 3. Connects the alveoli to the bronchi
- 5. Is c-shaped and found in the windpipe to keep it open
- 6. Warms air and filters it as it enters the body
- 7. A process where gases move from high to low concentration
- 9. The process of letting air out
- 10. Bones which protect the lungs from damage
- 11. A muscle which flattens to allow inhalation
- 13. A sac where gaseous exchange occurs
- 15. Another name for the throat
- 16. Air we breathe in is rich in this gas
Down
- 1. Takes air from the trachea into the lung
- 2. Line the windpipe and removes dust from inhaled air
- 4. Air we breathe out is rich in this gas
- 8. The process of taking air in
- 12. The windpipe, takes air to the lung
- 14. The voice box