<prompt> In infants, defecation often following meal. The cause of colonic contraction in this situation isGastroileal reflexEnterogastric reflexIncreased circulation levels of CCKGastrocolic - reflex  <response>: Ans. d Gastrocolic - reflexRef: Ganong, 25th edp.504Distension of the stomach by food - causes contractions of the rectum leading to defecation. This reflex is called gastrocolic reflex 