How does blood circulate between lungs and heart in human beings?

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  1. #contracts
  2. #enters
  3. #leaves
  4. #oxygenated
  5. #valve
  6. #blood
  7. #heart
  8. #through
  9. #ventricle
  10. #right
  11. #lungs
  12. #emptying
  13. #oxygen
  14. #where
  15. #inferior
  16. #pulmonic
  17. #pulmonary
  18. #artery
  19. #superior
  20. #atrium
  21. #veins
  22. #large