Cardio terminology

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Across
  1. 1. innermost lining of blood vessels
  2. 4. arteries two common carotid arteries located on each side of the neck branch
  3. 7. node peacemaker
  4. 11. small vein
  5. 12. muscle middle layer of the heart
  6. 14. relaxation phase of the heartbeat
Down
  1. 1. record of the electricity of the heart
  2. 2. double-layered membrane surrounding the heart
  3. 3. contraction phase of the heartbeat
  4. 5. valve located between the right atrium and the right ventricle
  5. 6. valve bicuspid valve
  6. 8. instrument to measure blood pressure
  7. 9. visualizing the interior of blood vessels
  8. 10. largest artery in the body
  9. 13. beat of the heart as felt through the walls of the arteries