Physiology General cd3d2b83 1st urge at micturition comes at ? A 50 ml B 250 ml C 150 ml D 350 ml High-Yield Explanation Ans. is 'c' i.e., 150 ml"First urge to void is felt at a bladder volume of about 150 ml, and a marked sense of fullness at about 400 ml". - Ganong