circulatory system

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Across
  1. 2. nicknamed the body's pump
  2. 4. o2
  3. 7. co2
  4. 9. connects arteries and veins
  5. 10. control blood flow in heart
Down
  1. 1. a major vien
  2. 3. rids of c02 and collects o2
  3. 5. to heart
  4. 6. away from heart
  5. 8. the name for veins/arteries involving lungs