Across
- 3. TV does this during exercise
- 5. mixture of gases exerting pressure
- 8. cavity above the diaphragm
- 11. usually 6l
- 14. alveoli are folded
Down
- 1. volume needed to stop the lungs collapsing
- 2. ..... RV decreases during exercise
- 4. high pp to low pp
- 6. amount of air in or out per breath
- 7. lining of the alveoli help with gas exchange
- 9. needed for aerobic respiration
- 10. dome shape muscle
- 12. back of the throat
- 13. iron pigment found in RBC