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

A) Pushing open of the venous valves
B) Suction pull
C) Stimulation of the sino-auricular node
D) Pressure difference between the caval and atrium
Explanation

Due to different pressure between the caval and atrium blood passes from the post caval to the diastolic right atrium of human heart.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.