Chapter 18 – The Cardiovascular System: The Heart

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Across
  1. 2. Left AV valve – has two cusps
  2. 3. Circuit that carries blood to and from all body tissues
  3. 6. Right AV valve – has three flexible cusps
  4. 7. Visceral layer of the serous pericardium
  5. 8. Functionally, the heart is a _________ pump.
  6. 11. Circuit that carries blood to and from the lungs
  7. 12. Cardiac muscle depends almost entirely on ___________ respiration to form ATP.
  8. 14. Periods of relaxation in the heart
  9. 16. Medial cavity of the thorax that contains the heart
  10. 17. Abnormally fast heart rate
  11. 18. Amount of blood pumped out by each ventricle in 1 minute
  12. 19. Pulse that can be felt between the fifth and sixth ribs on the left side of the body
Down
  1. 1. Abnormal heart sounds that usually reflect valve problems
  2. 4. Volume of blood pumped out by one ventricle with each beat
  3. 5. Cardiac muscle has more _________ than skeletal muscle.
  4. 9. Heart sounds associated with heart valve closings
  5. 10. Valves that guard the bases of the large arteries issuing from the aorta and pulmonary trunk
  6. 13. Heart rate slower than 60 beats/min
  7. 15. Periods of contraction in the heart
  8. 20. Diagnosis of a heart with inefficient pumping where blood circulation is inadequate to meet tissue needs