The Circulatory System

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