Across
- 5. lower left lung section
- 7. divides left lung
- 8. divides right lung
- 10. middle right lung section
- 12. immune gland
- 13. breathing muscle
- 14. top of lung
- 16. air sacs
- 17. bottom of lungs
- 18. divides right lung
Down
- 1. upper right top of lung
- 2. gas exchange tubes
- 3. food tube
- 4. heart to lung
- 5. lung to heart
- 6. lung covering
- 9. pumps blood
- 11. upper left lung section
- 12. air passage
- 15. fluid space