the heart

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Across
  1. 4. the amount of blood pumped out of the left ventrice per beat
  2. 5. a part in the cardiac cycle which make the atriums contract
  3. 8. a system of how blood travels through the body and heart
  4. 11. an artery which comes from the left ventricle
  5. 12. how blood returns to the heart
  6. 14. it can be a vein, artery or a valve in or around the heart
  7. 15. what the blood travels around the body in
Down
  1. 1. travells around the body to supply the body with oxygen
  2. 2. fount in the lungs and in the body during the cardiovascular system
  3. 3. come from the aorta to the heart
  4. 6. the amount of blood pumped out of the left ventricle per minute
  5. 7. the force at which bloods hits the artery walls
  6. 9. a mechanism in the venus return to pull blood down
  7. 10. used in gaseus exchange and needed to survive
  8. 13. a system of how the heat beats