B Brijesh Goswami π Tutor III β 9.45K Points 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 ποΈ Show Answer π¬ Discuss π Share β Correct Answer: (A) Pressure difference between the post caval and atrium