Across
- 5. apparatus designed to measure lung volume
- 6. small sacs in the lungs that allow for gas exchange
- 8. bleed vessel carrying blood away from the heart
- 9. the red pigment found in red blood cells
- 11. the expulsion of air from the lungs
- 12. upper chambers of the heart
- 14. the amount of air breathed in or out during a normal breath
Down
- 1. the movement of a gas from an area of high concentration to low
- 2. the tube that links your mouth and nose to the lungs
- 3. the number of times the heart beats per minute
- 4. the muscles found in between the ribs
- 7. the process of increasing blood flow to tissue that occurs during exercise
- 10. the amount of blood that leaves the heart per contraction
- 13. lower chambers of the heart