The Cardiovascular System

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Across
  1. 4. / vein
  2. 5. / contraction phase of the heartbeat
  3. 8. / smallest blood vessel; materials pass to and from the bloodstream through its thin walls
  4. 12. / brief discharges of electricity applied to stop dysrhythmias
  5. 14. / heart
  6. 15. / the two lower chambers of the heart
  7. 17. / double layered membrane surrounding the heart
  8. 21. ARTERY / blood vessels that branch from the aorta and carry oxygen rich blood to the heart
  9. 24. / record of electricity flowing through the heart
  10. 26. / abnormal swishing sound caused by improper closure of the heart valves
  11. 27. VALVE / valve between the left atrium and left ventricle, bicuspid valve
  12. 28. / yellowish plaque, fatty substance
Down
  1. 1. / small vein
  2. 2. / rapid but regular contractions, usually of atria
  3. 3. DEFECTS / small hole in the septa (wall) between the atria or ventricles
  4. 5. / pulse
  5. 6. / blue
  6. 7. / relaxation phase of the heartbeat
  7. 9. / vessel
  8. 10. / muscular middle layer of the heart
  9. 11. / lower tip of the heart
  10. 13. / arm
  11. 16. / chest
  12. 17. CIRCULATION / flow of blood from the heart to the lungs and back to the heart
  13. 18. / local dials toon of an arterial wall
  14. 19. / inner lining of the heart
  15. 20. / partition or wall dividing a cavity; such as between right and left atria
  16. 22. CAVA / largest vein in the body; returns blood directly to the heart
  17. 23. / the two upper chambers of the heart
  18. 25. / small artery