This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
The following bowel movement is not seen in normal individual: 
Select and explain. 
A. Peristalsis, B. Peristaltic rush, C. Segmentation contraction, D. Migrating motor complex
B: Peristaltic rush
Answer: B: Peristaltic rush 
Explanation: Peristaltic rush is a very intense peristaltic wave, occurs when intestine is obstructed, thus not seen in normal individuals. Peristalsis, segmental contraction, haustrations and migrating motor complex are all normal bowel movements. Ref: Ganong's, review of medical physiology, 22nd edition, Page 480, 482