Respiratory System

3. Blind pockets at the end of the respiratory tree
5. The trachea, bronchi, and bronchioles
6. The cessation of breathing
9. an abnormally low level of carbon dioxide in the blood
11. An abnormally high level of carbon dioxide in the blood
15. A complex cartilaginous structure that surrounds and protects the glottis and vocal cords
16. A viral infection of the respiratory tract: "the flu"
19. An acute respiratory disorder characterized by unusually sensitive, irritated conducting airways
20. A colorless, odorless reactive gas, the life-supporting component of the air
21. Inflammation of the bronchial lining
22. A collapsed lung

1. The place where gas exchange occurs
2. Lipid secretion that coats alveolar surfaces and prevents their collapse
4. The maximum amount of air that can be moved into or out of the respiratory system
7. A low oxygen concentration in a tissue
8. A colorless, odorless gas and a waste product made by the body.
10. A chamber in the skull bounded by the internal and external nares
12. The throat
13. A respiratory disorder characterized by by fluid leaking into the alveoli and/or swelling and constriction of the respiratory bronchioles
14. The wind pipe
17. One of the branches of the bronchial tree between the trachea and bronchioles
18. Paired organs of respiration