The Heart

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Across
  1. 2. Upper chamber that receives blood
  2. 3. artery Carries blood from right ventricle to lungs
  3. 5. cava Returns deoxygenated blood to the right atrium
  4. 8. Valve between right atrium and right ventricle
  5. 10. Lower chamber that pumps blood out of the heart
  6. 11. vein  Brings oxygenated blood from lungs to left atrium
  7. 13. Contraction phase of the heart
  8. 14. Wall separating left and right sides of the heart
Down
  1. 1. Relaxation phase of the heart
  2. 4. output Volume of blood pumped per minute
  3. 6. Carries oxygenated blood from left ventricle to body
  4. 7. Valve between left atrium and left ventricle
  5. 9. Valves that prevent backflow from arteries into ventricles
  6. 12. Heart generates its own electrical impulses