Across
- 4. voice box
- 6. location of lungs
- 8. windpipe
- 9. take in air
- 11. air passage above mouth
- 12. where oxygen is taken
- 13. allows air in
- 15. breathe out air
Down
- 1. air taken in
- 2. air sacs
- 3. air passages
- 5. air breathe out
- 7. left lung
- 10. protect the lungs
- 14. expand/contract
- 16. great for breathing