Fig. 5 Micrograph of Auerbach's (myenteric) plexus. The
Auerbach's plexus is the postsynaptic ganglion of
parasympathetic system that located between the space of
circular and longitudinal layers of muscularis externa of
gastrointestinal tract. The function of those plexus
modulate motor function of GI tract and regulation of
exocrine and endocrine secretion.