NEETBiologyBody Fluids and Its CirculationMCQ+4 / −1
In humans, blood passes from the post caval to the diastolic right atrium of heart due to
- Astimulation of the sino auricular node
- Bpressure difference between the post caval and atrium
- Cpushing open of the venous valves
- Dsuction pull.
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Correct answer: B
Due to the pressure difference between the post caval and atrium, the blood passes from the post caval to the diastolic right atrium. Diastolic right atrium has less pressure and post caval has high pressure, thus blood moves from post caval to right atrium.
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