Why Inhibition of the Myenteric Plexus Leads to Decreased Gut Motility
- The myenteric plexus is a linear network of linked neurons that runs the full length of the gut. The myenteric plexus, which is located within intestinal smooth muscle, is concerned with muscular regulation.
- The plexus increases the tone of the gut wall and the force of rhythmical contractions in response to stimulus.
- The myenteric plexus has an inhibitory purpose in addition to its primary role as a stimulator of excitatory muscle activity.
- The myenteric plexus may inhibit intestinal sphincter muscles like the pyloric sphincter and the ileocecal valve, which ordinarily obstruct the movement of gut contents, by secreting vasoactive intestinal polypeptide (or some other inhibitory peptide).
- The submucosal plexus regulates local muscular intestinal secretion, local absorption, and local contraction as a component of the inner wall.
Inhibition of the Myenteric Plexus Leads to which of the following? (a) Increased secretion of secretin from the duodenum (b) Decreased gut motility (c) Hyperacidity in the stomach (d) Diarrhoea
Gut motility is reduced when the myenteric plexus is inhibited. In order to control the GIT, or gastrointestinal tract, the hormonal system and the nervous system collaborate. GIT processes, such as secretion and motility, are controlled by the intrinsic nervous system.
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