Bulk mass contraction is seen in: March 2012: (A) Stomach, (B) Duodenum, (C) Ileum, (D) Colon
Answer is D. Ans: D i.e. ColonMass movement/mass peristalsis occur twice a day.A ring of constriction appears near the splenic flexure and travels down sweeping the descending colon, pushing the faeces into the rectum