Cardiovascular system

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Across
  1. 3. large vein carrying deoxygenated blood back to heart
  2. 5. returns blood from upper body
  3. 9. bottom chamber on right side
  4. 10. top chamber of the heart on the right side
Down
  1. 1. top chamber of the heart on the left side
  2. 2. bottom chamber on the left side
  3. 4. where oxygen and nutrients are picked up by the blood to make oxygen
  4. 6. returns blood from lower body.
  5. 7. main artery of heart
  6. 8. pumps blood through the body.