the Circulatory System

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Across
  1. 3. carry the blood through the circuits
  2. 6. wall are only 1 cell thick
  3. 7. Receiving chambers
  4. 9. carry blood away from the hart
  5. 10. transport oxygen
  6. 11. attacks foreign substance
  7. 12. only 1% of the heart
  8. 13. heart muscle itself
  9. 15. vessels of the heart includes
  10. 16. smooth thin membrane lining the heart
  11. 17. 45%of blood volume
  12. 19. listening to heart sound
  13. 21. amount of blood pumped by each ventricle in one minute
  14. 22. blood flows to and from the rest of the body
  15. 23. thin outer layer of the heats wall
Down
  1. 1. pumping chambers
  2. 2. is more muscular than right side
  3. 4. prevent backflow of blood from the ventricles to the atria
  4. 5. controls blood flow
  5. 7. carry away from the heart
  6. 8. prevent backflow into the ventricles from trunk and aorta
  7. 14. 55%of blood volume
  8. 18. blood flows to and from the rest of the lungs
  9. 20. Functions to clot blood
  10. 22. divide the heats