Blood and Circulatory System

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Across
  1. 7. Cardiac cycle is controlled by this
  2. 9. Red pigment found in red blood cells
  3. 10. Blood cell responsible for blood clotting
  4. 12. Left side of the heart carries _____ blood
  5. 14. Blood vessel with a thin wall, large lumen and valves
  6. 15. Type of white blood cell that digest bacteria
Down
  1. 1. Vessels which transport blood to and from the heart muscle
  2. 2. _____ valve found on the left side of the heart
  3. 3. Divides the heart into two separate pumps
  4. 4. Type of white blood cell that makes antibodies
  5. 5. Liquid part of the blood
  6. 6. Alternate contraction and relaxation of an artery through which blood passes
  7. 8. Carries the blood away from the heart
  8. 11. Blood vessel only one cell thick
  9. 13. Promotes healthy blood vessels and strengthens the heart