The Heart

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Across
  1. 1. return blood to the heart
  2. 4. stroke volume * heart rate
  3. 5. a period of contraction in a chamber of the heart, part of the cardiac cycle
  4. 9. located above the left ventricle, receives oxygenated blood from lungs, left
  5. 10. a small blood vessel located between an arteriole and a venule
  6. 12. fluid filled fibrous sac that surrounds the heart
  7. 13. if my cardiac output is 5600ml and my stroke volume is 70ml, what is my heart rate?
  8. 15. a period of relaxation in a chamber of the heart
Down
  1. 2. volume the amount of blood pumped out of the left ventricle during each contraction
  2. 3. supply of oxygen to the heart muscle, ___________ circulation
  3. 6. the superior and inferior vena cava pump _________ blood into the right atrium
  4. 7. the cardiac muscle tissue of the heart
  5. 8. prevent backflow of blood while the chambers contract
  6. 11. carry blood away from the heart
  7. 14. "the pacemaker of the heart" __ node
  8. 16. the atria are separated by the interatrial ______
  9. 17. test used to measure the electrical activity of the heart