Across
- 3. Gas
- 6. Lung
- 7. Carbon Dioxide
- 11. excessive carbon dioxide in the blood
- 12. tear duct
- 13. Bronchus
- 15. eye
- 16. Nose
- 18. Sinus
- 20. retina
Down
- 1. Air
- 2. Larynx
- 4. Oxygen
- 5. eyelid
- 6. Lung, air
- 8. eye
- 9. Inflammation of the bronchial membranes
- 10. Chest
- 14. cornea
- 17. iris
- 19. Nose