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