Question

describe one factor that retards venous return

Answer 1

Venous return is defined as the return of blood from different body parts to the heart. There are many factors which affect venous return. One of the most important factor that retards venous return is posture and gravity. Gravitational force pull blood down specially in erect posture. It decreases the venous return in the lower limb of the body. Thus, in supine position the gravitational force less affect the venous return and in this condition return of blood to the heart is maximum.