Across
- 5. carries deoxygenated blood
- 10. allow movement of air in the alveolar sac
- 12. top of the lungs
- 13. passageway connecting the respiratory bronchioles to the alveolar sacs
- 14. pulls air into lungs
- 16. separates the superior and inferior lobes
- 18. separates the right middle lobe from the right upper lobe
- 19. acts as cushioning for the lungs
- 20. trains White blood cells/below trachea
Down
- 1. tiny balloon shaped air sacs located at the end of the bronchioles in the lungs
- 2. acts as the pathway from the mouth to the stomach and lungs
- 3. connects the lungs to their supporting structures
- 4. keeps the heart contained in the chest cavity
- 6. transports air from larger bronchial tubes to the alveoli
- 7. facilitate the exchange of oxygen and carbon dioxide
- 8. basic respiratory units
- 9. carries air from and to the lungs
- 11. additional layer of protection
- 15. smallest lobe of the lung
- 17. to protect the vital organs of the chest