Venous return to hea during quiet standing is facilitated by all of the following factors, except:: (A) Calf muscle contraction during standing, (B) Valves in perforators, (C) Sleeves of deep fascia, (D) Gravitational increase in aerial pressure
Answer is D. Gravitational increase in aerial pressure decrease the venous return. Ref: Srb's Manual of Surgery By Sriram Bhat, Page 188.