Across
- 2. muscle that make the inflate and deflate
- 4. A waste of gas in your body
- 7. the small tubes that connect to the alveoli
- 8. It is the pipe that sends air to the lungs
- 10. How air goes in your body
- 11. the wall of the blood vessel
Down
- 1. ability to make air pass though you blood
- 3. It is the organ that collects the air
- 5. How you inhale and exhale
- 6. air sac that change cabondiocide and oxygen
- 7. at the end of trachea and split air in lung
- 9. The thing that protects the lungs