Across
- 5. sends air to the lungs
- 7. helps collects air
- 9. helps you to smell
- 10. air tubes that connect
- 11. smallest blood vessels
Down
- 1. the process of moving
- 2. inflates and deflates the lungs
- 3. gets delivered to cells
- 4. splits air into lungs
- 6. air sacs that exchange oxygen
- 8. protect lungs