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Submucosal plexus: Wikis


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Nerve: Meissner's plexus
The plexus of the submucosa from the rabbit. X 50.
longitudinal muscle
myenteric plexus
circular muscle
submucosal plexus
Latin plexus nervosus submucosus, plexus submucosus
Gray's subject #248 1177
MeSH Submucous+Plexus

The nerves of the small intestines are derived from the plexuses of parasympathetic nerves around the superior mesenteric artery. From this source they run to the myenteric plexus (Auerbach's plexus) of nerves and ganglia situated between the circular muscular fibers and the mucosal cells. From this a secondary plexus, the plexus of the submucosa (Meissner's plexus, Submucous plexus, submucosal plexus) is derived, and it is formed by branches that have perforated the circular muscular fibers. This plexus lies in the submucous coat of the intestine; it also contains ganglia from which nerve fibers pass to the muscularis mucosae and to the mucous membrane. The nerve bundles of the submucous plexus are finer than those of the myenteric plexus. Its function is to innervate cells in the epithelial layer and the smooth muscle of the (muscularis externa).

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.



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