Across
- 4. Picks up the oxygen and delivers it to cells in the body
- 5. Damage to part of the heart muscle due to a lack of oxygen-rich blood supply
- 7. The largest artery in the body
- 8. A vessel that carries oxygen-rich blood to the body
- 9. The alternating expansion and relaxation of the artery walls
- 11. Pressure of the blood in the arteries
- 13. The two lower chambers of the heart
- 14. Main organ of the circulatory system
Down
- 1. cells that fight disease
- 2. Exchange materials between the blood and body cells
- 3. Liquid part of the blood
- 5. High blood pressure
- 6. The two upper chambers of the heart
- 10. Blood vessels that carry blood from various parts of the body to the heart
- 12. Cell fragments that help form blood clots