1. 5 The effects of serotonin on gastrointestinal motor function are generally believed to be mediated through myenteric plexus neurons.

2. Achalasia of the gastro-oesophageal sphincter results from a lack of nitric-oxide synthase in the myenteric plexus.

3. Objective To study the role of nitriergic nerves in the myenteric plexus of the gastric antrum in diabetic rats with motor disorder.

4. 5 When thought to involve abnormalities of smooth muscle without abnormalities in myenteric neurons the syndrome is termed hollow visceral myopathy.

5. The absence of myenteric ganglia in Hirschsprung’s disease results in massively increased parasympathetic activity with abundant acetylcholine release and pseudo-obstruction in the aganglionic segment.

6. It is concluded that measurements of the anal resting pressure and the rectoanal reflex constitute a valuable method to distinguish between normal and pathological sacral and myenteric innervation.

7. The localization of NADPH-diaphorase(NDP)in the jejunum myenteric plexus of the rat has been studied with light and electron microscope by using NADPH-diaphorase(NDP) histochemical staining method.sentencedict .com

8. The spasticity of the distal, aganglionic colon segment can be explained by the permanent parasympathetic excitation of the circular muscle in the absence of modulation of the extramural parasympathetic stimulation by the intramural ganglion cells (myenteric and submucosal).