Cardiovascular system

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Across
  1. 2. ultrasound of heart
  2. 4. slow
  3. 5. self
  4. 7. beats per minute
  5. 9. inner lining
  6. 11. chest pain
  7. 13. dye injected into blood vessels
  8. 17. against
  9. 18. carry blood away from heart
  10. 19. narrowing of arteries
  11. 20. how well a system functions under pressure
  12. 21. between
Down
  1. 1. inner
  2. 3. stopping of heart
  3. 4. blood pressure
  4. 6. measure pressure
  5. 8. high blood pressure
  6. 9. outer lining
  7. 10. chief complait
  8. 12. muscle lining
  9. 13. swelling artery wall
  10. 14. heart attack
  11. 15. carry blood toward heart
  12. 16. ultrasound of blood
  13. 17. atrial fibrillation