Across
- 4. Connects the mouth and nasal passages to the esophagus
- 9. A disease caused by narrowing and obstructing of the bronchioles
- 13. A disease caused by damage to the alveoli
- 15. A box of cartilage and passageway from pharynx to trachea
- 17. A sticky sheet that traps dirt
- 18. The emission of air from the lungs
- 19. A thin passageways within the lungs
- 21. A large chamber lined with mucous membrane
- 25. A pair of ligaments that open during respiration
- 26. Inflammation of the pleura
- 27. The organ that takes in air
Down
- 1. A colorless, odorless gas supplied for energy to our cells
- 2. A waste product exhaled from the lungs
- 3. These branch off the trachea leading into the lungs
- 5. Forms by malignant tumors that spread in the lungs
- 6. White blood cells that engulfs dirt and bacteria
- 7. Wall of the alveolus which diffuses oxygen
- 8. Sac-like organs beneath the rib cage
- 10. The drawing of air into the lungs
- 11. Fine blood vessels that form a network between arterioles and venules
- 12. The process which oxygen passes through a membrane
- 14. A dome shaped muscle that contracts during respiration
- 16. The muscular flap attached to the larynx
- 20. The force exerted by air
- 22. Grape-like clusters of microscopic air sacs
- 23. Hair-like projections that sweep particles
- 24. Also the windpipe, which extends from the larynx to the bronchi