Circulatory System

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Across
  1. 4. a small blood cell that helps the blood to clot
  2. 5. a tiny blood vessel
  3. 7. the artery that carries blood from the right ventricle to the lungs
  4. 8. a blood cell that fights infection by destroying microscopic, disease-causing organisms
  5. 9. a blood cell that carries oxygen throughout the body
  6. 10. structures that open and close to control blood flow through the heart
  7. 12. a waste product in the blood that comes from the
  8. 13. a blood vessel that carries blood to the heart
Down
  1. 1. system the body system that includes the heart,blood vessels, and blood
  2. 2. of proteins
  3. 3. a tube in the body through which blood flows
  4. 6. either of the two lower chambers of the heart that pumps blood through arteries
  5. 7. the vein that carries blood from the lungs to the left atrium
  6. 10. the muscular organ that pumps blood throughout the body
  7. 11. a blood vessel that carries blood away from the heart