Across
- 1. how often your heart beats
- 2. A lower heart chamber
- 3. the side of the heart that has oxygen poor blood
- 4. Prevents backflow of blood
- 6. the expansion of your arteries felt in the wrist
- 9. the pigment in red blood cells
- 10. ___blood cells protect against disease
- 11. the gas needed for respiration
- 12. _____ blood cells carry oxygen
- 14. the side of the heart that has oxygen rich blood
Down
- 1. the shape of a red blood cell
- 3. the rate of the heart when not working hard
- 5. made by white cells to fight infection
- 7. a waste product carried in the blood to the lung
- 8. liquid part of blood
- 9. A pump that moves blood around the body
- 13. An upper heart chamber