<prompt> In a normal person which of the following occurs when he changes to supine position from standingCerebral perfusion increasesHea rate settles to a higher levelImmediate increase in venous returnDecreased perfusion to the apex  <response>: Venous return is decreased in standing posture due to pooling of blood in lower extremities and is maximum in lying down position. Ref: Textbook of medical physiology by N Geetha, 2nd edition, page no. 170 