Circulatory System

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Across
  1. 3. Blood cells that keep people healthy.
  2. 6. Vessels that carry blood away from the heart.
  3. 8. The largest artery in the body.
  4. 11. The smallest blood vessels.
  5. 12. Blood delivers this to cells.
  6. 13. Muscle at the center of the circulatory system.
  7. 14. _______ dioxide.
Down
  1. 1. The purpose of these is to clot blood when a person is cut.
  2. 2. Eating _______ food is good for the circulatory system.
  3. 4. Everytime your heart pumps blood through the body, you have a _______.
  4. 5. The heart has four of these to close off blood flow.
  5. 7. Muscle that runs down the center of the heart.
  6. 9. Tiny sacs that provide oxygen in the lungs.
  7. 10. Blood _____ run through every part of the body.
  8. 11. There are four of these in the heart.