Q155 / 199 · NEET 2008 (Mains) · Zoology

In humans, blood passes from the post caval to the diastolic right atrium of heart due to

  • Correct answer
    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

Solution

Blood always flows from higher pressure towards the lower pressure.

Hence, the correct answer is option: 'A'.

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