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Across
  1. 6. – Contraction phase of the heartbeat.
  2. 9. – Blood vessel that carries blood to the heart.
  3. 10. – Abbreviation for electrocardiogram.
  4. 12. – Relating to the heart and blood vessels.
  5. 17. – A point in the heart that generates or conducts impulses.
  6. 18. – A recording of the electrical activity of the heart.
  7. 20. – Upper chamber of the heart that receives blood.
Down
  1. 1. – Transmission of electrical impulses in the heart.
  2. 2. – Flow of blood through tissues or organs.
  3. 3. – Relaxation phase of the heartbeat.
  4. 4. Pressure – Force of blood against artery walls.
  5. 5. – Lower heart chamber that pumps blood out.
  6. 7. – Muscular tissue of the heart.
  7. 8. – Electrode placement for recording heart’s electrical activity.
  8. 11. – The rhythmic throbbing of arteries as blood is pumped.
  9. 13. – Blood vessel that carries blood away from the heart.
  10. 14. Rate – Number of heartbeats per minute.
  11. 15. Cycle – One complete heartbeat (contraction and relaxation).
  12. 16. – The largest artery in the body.
  13. 19. – Tiny blood vessel where exchange of gases occurs.