Biology

2. enlarged segment of cartilage that supports epiogottis
3. exchange of air between our lungs and the environment
5. this and alveoli are where oxygen in the lungs is exchanged with carbon dioxide in the blood
8. location where gas exchange occurs between outer environment and blood
9. makes up 21% of air
11. organs that contain air passage to alveoli
12. adheres lungs to chest wall
15. connects pharynx to lungs, lined with mucus
17. movement of particles from high concentration to low concentration
18. provides increased SA in the nasal passages for warming of air
19. tiny, hair-like structures that catch and get rid of foreign debris
20. gases move between blood and cells
21. large flat muscle that separates the chest cavity from the abdominal cavity

1. contains ciliated and mucus-producing cells but arent supported by rings of cartilage
4. flap of cartilage that lies behind the tongue
6. makes up 2% of air
7. volume of air that is inhaled and exhaled when breathing (at rest)
8. volume of air that remains in the lungs after full exhalation
10. gases move between lungs and blood
12. muscular tube connecting to nose and mouth through larynx and esophagus
13. carry air into the lungs and branch into branchioles
14. makes up 78% of the air
16. an enzyme found in red blood cells that speeds up carbon dioxide reaction