Respiratory System
Across
- 2. this is located in the left lung
- 5. air enters through this
- 7. protects the lungs
- 8. voice box
- 9. transports oxygen into bloodstream and takeaway CO2
- 10. two large tubes in the lungs
- 11. tiny hairs that trap dirt and particles
Down
- 1. keeps lungs strong and healthy
- 3. tiny air sac at end of bronchioles
- 4. three sections in right lung
- 6. deadly build-up of waste gas