Notable postnatal alterations in the myenteric
plexus of normal human bowel.
Interestingly, this involuntary component of deglutition is under autonomic control, and Lewy bodies have been identified in the oesophageal myenteric
plexus [66, 67].
It has now been well established that GISTs arise from the interstitial cells of Cajal, which are specialized pacemaker cells located around the myenteric
plexus of the gut wall, particularly in the stomach and small intestine .
A second layer of smooth muscle lies lengthwise, and between these two layers is the myenteric
Mice overexpressing wild-type human alpha-synuclein display alterations in colonic myenteric
ganglia and defecation.
6,7) In the myenteric
and submucosal plexus, CB-1 receptor activation decreases gastric acid secretion, slows gastric emptying and slows intestinal motility.
The histological analyses evidenced, along the entire digestive tract, the presence of four distinct tunicae composing the wall: mucosa, submucosa, muscularis externa and serosa, besides distinct intrinsic innervation represented by the submucosal and myenteric
ganglionated plexuses, in accordance to the organ considered.
, subepicardial, and pulmonary ganglioneuritis in four nonpsittacine birds.
The lack of lower esophageal sphincter relaxation is likely due to a loss of inhibitory neurons in the esophageal myenteric
Effects of the probiotic yeast Saccharomyces boulardi on the neurochemistry of myenteric
neurones in pig jejunum Neurogastroenterol.
4) Histologic examination reveals decreased numbers of neurons (ganglion cells) in the myenteric
plexuses, and the ganglion cells that remain often are surrounded by lymphocytes and, less prominently, by eosinophils.
The normal architecture of the myenteric
and submucosal plexi was verified by immunohistochemical investigation.