The Circulatory System

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Across
  1. 6. the circulation of blood to and from the lungs
  2. 8. special blood vessel that carries oxygenated blood away from the lungs
  3. 9. the lower chambers of the heart
  4. 10. cell responsible for holding on to oxygen or carbon dioxide in the blood
  5. 12. the watery, fluid part of blood
  6. 13. special blood vessel that brings deoxygenated blood to the lungs
  7. 14. special blood vessel that carries oxygenated blood away from the heart
  8. 16. special blood vessel that supplies oxygenated blood to the heart
  9. 17. the circulation of blood through most of the body
Down
  1. 1. blood vessel that carried blood back to the heart
  2. 2. flaps of tissue in veins and the heart that prevent blood from flowing backwards
  3. 3. cell responsible for fighting off infections in the body
  4. 4. blood vessel that carries blood away from the heart
  5. 5. tiny blood vessel that connects arteries to veins around the body
  6. 7. the four-chambered organ responsible for pumping blood
  7. 11. special blood vessel that brings deoxygenated blood to the heart
  8. 15. the upper chambers of the heart