Myenteric plexus in GIT controls-: (A) GI secretions, (B) Local blood flow, (C) GI motility, (D) All of the above
Answer is C. Ans. is 'c' i.e., GI motility * The enteric nervous system is composed mainly of two plexus : -i) Myenteric plexus or Auerbach's plexus :# It is an outer plexus lying between the longitudinal and circular muscle layer.# The myenteric plexus controls mainly gastrointestinal motility therefore, perisalsis requires an active myenteric plexus.ii) Meissner's plexus or submucosal plexus :# It is an inner plexus that lies in the submucosa.# The submucosal plexus controls mainly gastrointestinal secretion and local blood flow.