The Heart

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Across
  1. 3. Bundle of specialized muscle fibers connecting the atria with the ventricles and transmitting electrical impulses between them.
  2. 5. Narrowing of the mitral valve.
  3. 6. Valve between the right atrium and right ventricle.
  4. 8. Valve between the left atrium and left ventricle.
  5. 10. Condition of rapid heartbeat.
  6. 11. Disease condition of heart muscle.
  7. 13. One of the two upper chambers of the heart.
  8. 15. Record of the electrical activity of the heart.
  9. 16. Relaxation phase of the heartbeat.
Down
  1. 1. One of two lower chambers of the heart.
  2. 2. Largest artery in the body.
  3. 4. Double-layered membrane surrounding the heart.
  4. 7. Two common arteries located on each side of the neck.
  5. 9. Muscular middle layer of the heart.
  6. 12. Specialized nervous tissue in the right atrium that begins the heartbeat.
  7. 14. Partition or wall dividing right and left atria and ventricles.