হৃৎপিন্ডের গঠন Structure of heart amp blood circulation in Bengali

############################# Video Source: www.youtube.com/watch?v=RtzOIUPCwU0

This vedio is about how blood circulation occurs through the heart..

Blood circulation through the heart, Circulation in heart, Heart valves, Blood circulation, Role of heart in blood circulation, Heart, Aorta, Venacava, Pulmonary trunk, Atrium, Ventricle, Role of heart valves, Role of valves, Pumping action of the heart, circulation of blood, circulation of blood through the heart, circulation of blood through the heart in Bengali, artery, vein, aorta, blood
#############################