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 mass movement of the colon would be abolished by 
Select and explain. 
A. Extrinsic denervation, B. Distension of the colon, C. Gastrocolic reflex, D. Destruction of auerbach's plexus
D: Destruction of auerbach's plexus
Answer: D: Destruction of auerbach's plexus 
Explanation: Distension of the colon and gastro - colic reflex stimulates mass movement through the myenteric plexus / Auerbach plexus. So if it destroyed, mass movement gets abolished.