Respiratory System

5. the process in which oxygen diffuses into the blood stream from the alveoli
7. destroys your respiratory protective systems
12. a poisonous gas that blocks the transport of oxygen by hemoglobin in the blood.
13. contains a number of compounds that have been shown to cause cancer
15. tiny air sacs at the end of bronchioles
17. a flap of tissue that covers the trachea
18. performs as a passageway for both air and food, aka the throat
20. the smallest subdivision of the bronchus
22. The lungs are sealed in two sacs called _________
24. two large passageways in the chest cavity

1. a large flat muscle at the bottom of the chest cavity
2. collects dust and moistens air
3. the loss of elasticity in tissues in the lungs
4. in __________ the bronchi become swollen and clogged with mucus
6. stimulant drug that increases heart rate and blood pressure
8. pink, spongy organs in your chest
9. takes in air
10. the function of the _________ is to exchange oxygen and carbon dioxide using blood,the air, and tissues
11. the part of the brain that controls breathing
14. increases the oxygen carrying capacity
16. a disease you can get from smoking that dangerously spreads
19. aka the windpipe
21. the _______ sweeps the dust and mucus up toward the pharynx
23. contains vocal chords