The Human Heart

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Across
  1. 2. / The main trunk of the arterial system of the body
  2. 5. / The arteries surrounding heart muscle
  3. 7. Cava / A large vein that drains directly into the heart after receiving blood from the entire body
  4. 9. / The degeneration and hardening of walls of the arteries
  5. 12. / The study of the heart and its diseases
  6. 14. / The relaxation phase of the heartbeat
  7. 16. / Valve in between the left atrium and left ventricle
  8. 17. / Deficiency of red blood cells, hemoglobin, or both
  9. 18. / A soft blowing or rasping sound
Down
  1. 1. / The presence of an obstruction in a blood vessel
  2. 2. / Increasing the function or action
  3. 3. / Without rhythm; irregularity
  4. 4. / The quivering of muscle fibers; ineffective, rapid but weak heart action
  5. 6. / The graphic record of the electric current of the heart action
  6. 7. / The lower chambers of the heart
  7. 8. / The cause of fibrillation to end; restore to normal
  8. 10. / The inside lining of the heart
  9. 11. / Heart valve between the left atrium and left ventricle
  10. 13. / A dividing wall
  11. 15. / The cardiac auricle; the upper chamber of the heart