Chapter 11 Cardiovascular System

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Across
  1. 4. benign tumor of connective tissue in the heart muscle
  2. 6. upper chamber of the heart
  3. 8. narrowing of a blood vessel
  4. 10. specialized nervous tissue (sinoatrial node)in the right atrial wall, it begins the heartbeat
  5. 14. instrument to measure blood pressure
  6. 17. inner lining of the heart
  7. 18. one of two lower chambers of the heart
  8. 20. enlargement of the heart
  9. 21. deficiency of oxygen in tissues
Down
  1. 1. slow heartbeat
  2. 2. wall or partition
  3. 3. rapid heartbeat
  4. 5. relaxation phase of the heartbeat
  5. 7. largest type of blood vessel
  6. 9. contraction phase of the heartbeat
  7. 10. beat of the heart as felt through the walls of the arteries
  8. 11. irregular or abnormal heartbeat
  9. 12. largest artery in the body
  10. 13. without oxygen
  11. 15. structure in a vein or in the heart that temporarily closes an opening so that blood flows in the proper direction
  12. 16. thin walled blood vessel that carries oxygen-poor (deoxygenated) blood from body tissues back to the heart
  13. 19. smallest type of blood vessel