Cardiovascular System Terminology

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Across
  1. 2. relaxation phase of the heartbeat
  2. 4. flow of blood from the heart to the lungs and back
  3. 7. located between the right atrium and ventricle
  4. 9. Largest artery in the body
  5. 11. nervous tissue in right atrium that begins the heartbeat
  6. 12. contraction phase of the heartbeat
  7. 13. record of electrical activity of the heart
  8. 14. beat of the heart
  9. 15. small vein
Down
  1. 1. membrane surrounding the heart
  2. 3. largest vein in the body
  3. 5. abnormal swishing sound from improper closure of the heart valves
  4. 6. inner lining of the heart
  5. 8. innermost lining of blood vessels
  6. 9. small artery
  7. 10. middle layer of the heart