When a person changes position from standing to lying down, following change is seen:
Correct Answer: Venous return to hea increases immediately
Description: B i.e. Venous return to hea increases immediately In standing posture, 300- 500m1 of blood pools in venous capacitance vessels of lower extremities, which is immediately returned towards heaQ on assuming lying down posture. Cardiovascular system Onlying On standing - Stroke volume - Cardiac output - Venous return - Central blood pool Increase Decrease - Central venous pressure - Aerial BP - Abdominal & limb flow - Hea rate - Peripheral venous pooling - Total peripheral resistance Decrease Increase - Abdominal & limb resistance - Small vein pressure
Category:
Physiology
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