Cardiovascular Puzzle

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Across
  1. 2. inflammation of the membrane that surrounds the heart
  2. 4. smaller branches of arteries
  3. 6. bicuspid valve
  4. 8. the innermost layer of epithelial cells
  5. 10. supplies blood to the head and neck
  6. 14. yellow plaque containing cholesterol that is found in the lining of the arteries
  7. 15. blood that flows from body tissue to the heart and then back to the body tissues
  8. 17. when the heart stops
  9. 18. has three leaflets or cusps
Down
  1. 1. the middle layer of the heart that is muscular
  2. 3. when the heartbeat is in the relaxation phase
  3. 5. slower heartbeat
  4. 7. lowers cholesterol levels
  5. 9. improper closer of the heart valves that causes an abnormal swishing sound
  6. 11. a vasodilator that helps lower blood pressure and increase coronary flow
  7. 12. excess fluid that is removed from the pericardial space
  8. 13. very fast and irregular contractions of the heart
  9. 16. largest single artery in the body