Across
- 1. end of trachea
- 3. pipe that sends air to the lung
- 7. responsible for inflating,deflating the
- 9. tubes that connect the bronchus to the
- 10. air sacs that exchange oxygen and carbon dioxide in the blood
Down
- 2. odourless gas produced by burning carbon
- 4. movement of anything
- 5. component of the air
- 6. a tube that has an internal diameter of hairlike thickness
- 8. bones articulated in pairs to the spine
- 11. organ that collects air