submucosal plexus


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sub·mu·co·sal plex·us

(sŭb'myū-kō'săl plek'sŭs)
A gangliated plexus of unmyelinated nerve fibers, derived chiefly from the superior mesenteric plexus, ramifying in the intestinal submucosa.

submucosal plexus

The division of the enteric plexus found in the submucosal layer of the walls of the gastrointestinal tract. The most superficial (closest to the lumen) layer of the submucosal plexus is also called the Meissner plexus.
Synonym: submucous plexus See: Meissner plexus
See also: plexus

Meissner,

Georg, German anatomist and physiologist, 1829-1905.
Meissner corpuscle - Synonym(s): tactile corpuscle
Meissner ganglion
Meissner plexus - a gangliated plexus of unmyelinated nerve fibers. Synonym(s): submucosal plexus

Remak,

Robert, Polish-German anatomist and histologist, 1815-1865.
Remak band
Remak fibers - nerve fibers lacking a myelin sheath but, in common with others, enveloped by a sheath of Schwann cells. Synonym(s): unmyelinated fibers
Remak ganglia - (1) groups of nerve cells in the wall of the venous sinus where it joins the right atrium of the heart; - (2) autonomic ganglia in nerves of the stomach.
Remak nuclear division - direct division of the nucleus and cell, without the changes in the nucleus that occur in the ordinary process of cell reproduction. Synonym(s): amitosis
Remak plexus - a gangliated plexus of unmyelinated nerve fibers, derived chiefly from the superior mesenteric plexus, ramifying in the intestinal submucosa. Synonym(s): submucosal plexus
References in periodicals archive ?
From the neuronal evidentiation techniques utilized in this study, it can be noticed that the neurons of the submucosal plexus organize themselves into interconnected ganglia through fiber bundles.
Using Giemsa technique, it was verified that in the jejunum submucosal plexus of rats, ganglia had from 4 to 20 neurons (an average of 11.4 per ganglion).
However, studies on jejunum (Hermes-Uliana et al., 2014) and duodenum (Lopes et al, 2012) of 210-day-old rats found 26 % and 23 % of nitrergic neurons in the submucosal plexus, respectively.
Mitsui verified that neurons of the colon submucosal plexus of rats also presented round and oval cell bodies.
Studies involving neurons and fibers of the submucosal plexus are promising because of their involvement in the maintenance of the intestinal mucosal structure.
Thus, it is concluded that in the jejunum submucosal plexus of adult rats: