Mass movements of the colon would be abolished by: (A) Extrinsic denervation, (B) Distension of colon, (C) Gastrocolic reflex, (D) Destruction of Auerbach's plexus
Answer is D. Auerbach's plexus which is located between the inner circular and outer longitudinal muscle layer is the one which controls local GI motility Ref: Ganong 25th ed/page 497