Across
- 5. the alveolus puts oxygen into this
- 6. organ transports air from the nose to the bronchus
- 8. the gas that goes out of the body
- 9. organ where the exchange of carbon dioxide and oxygen happens
- 10. the gas that goes into the body through the nose and mouth
- 11. brings in air from the environment and filters it
Down
- 1. the system in witch breathing occurs
- 2. another word for trachea
- 3. this organ expands and contracts causing the lungs to collect oxygen and give out carbon dioxide
- 4. this organ collects air from the trachea and disperses it in the lungs
- 5. the action that is caused from the lungs expanding and contracting
- 7. the organ where the oxygen enters the bloodstream