Q. In humans, blood passes from the post caval to the diastolic right atrium of heart due to:
  • (A) Pressure difference between the post caval and atrium
  • (B) Pushing open of the venous valves
  • (C) Suction pull
  • (D) Stimulation of the sino auricular node
πŸ’¬ Discuss
βœ… Correct Answer: (A) Pressure difference between the post caval and atrium

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