SUBMUCOSAL (MEISSNER’S) PLEXUS
Figure 8­53
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Global
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Holdings,
Review the brief introduction to the parasympathetic innervation of the smooth muscle in the walls of the organs of
the gastrointestinal system, as described in Chapter 8: Nervous System: Myenteric (Auerbach's) Plexus.
LLC.
The smooth muscle that constitutes the muscularis mucosae, which is shown here at the arrowhead, receives post-
Not
ganglionic parasympathetic nerve fibers from neurons clustered in small ganglia located in the submucosa, the sub-
to
mucosal plexus, or Meissner's plexus (B). Paneth cells (A) at the base of the intestinal crypts of the mucosa contain
be
redistributed
darkly stained secretory granules and serve as a landmark between the mucosa, in which they are situated, and the
subjacent submucosa. The submucosal plexus also innervates the mucosal glands.
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