Respiratory System

3. when air is flowing into the lungs
7. the respiratory system works very closely with this other system
13. the more superficial serous membrane covering the lungs
16. separates your nostrils
17. the air that stays in the conducting zone and never reaches the respiratory zone
20. where the lungs decrease in size (decrease volume), you would expect the pressure to be _______
22. prevents food from going down the wrong tube

1. branched bronchi
2. common passageway for food, fluids, and air
4. normal, quiet breathing
5. the terminal ends of bronchioles that is the actual site of gas exchange
6. has C-shaped cartilage rings; another name for windpipe
7. trachea, bronchi, and your nose falls into this zone category
8. the volume within the lungs
9. serous membrane layer directly connected to the surface of the lungs
10. zone that includes bronchioles and alveoli
11. the air that always remains in the lungs
12. abbreviation that stands for the maximum amount of air your can inhale
14. another name for voicebox
15. muscle inferior to the lungs that is dome-shaped when relaxed
18. respiratory event where gas exchanged between the blood and the body's exterior
19. abbreviation that stands for the maximum amount of air you can exhale
21. expiration is a ____________ passive process because the lungs are naturally elastic