Neuromuscular control of esophageal peristalsis.

HyoJin Park, J. L. Conklin

Research output: Contribution to journalReview article

37 Citations (Scopus)

Abstract

The esophagus is a muscular conduit connecting the pharynx and the stomach. Its function is controlled by an intrinsic nervous system and by input from the central nervous system through the vagus nerve. Peristalsis in its striated muscle is directed by sequential vagal excitation arising in the brain stem, whereas peristalsis in its smooth muscle involves complex interactions among the central and peripheral neural systems and the smooth muscle elements of the esophagus. The peripheral neuronal elements responsible for producing esophageal off-response, relaxation of the lower esophageal sphincter, and hyperpolarization of the circular esophageal muscle cells reside in the myenteric plexus of the esophagus. For many years these nerves were considered nonadrenergic and noncholinergic because the inhibitory neurotransmitter released on their activation was unknown. We now know that nitric oxide or a related compound is that inhibitory neurotransmitter. The primary excitatory neurotransmitter controlling esophageal motor function is acetylcholine. Some disorders of esophageal motor function, including diffuse esophageal spasm and achalasia, may result from defects in or an imbalance between these excitatory and inhibitory neuromuscular systems.

Original languageEnglish
Pages (from-to)186-197
Number of pages12
JournalCurrent Gastroenterology Reports
Volume1
Issue number3
DOIs
Publication statusPublished - 1999 Jan 1

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Peristalsis
Esophagus
Neurotransmitter Agents
Smooth Muscle
Diffuse Esophageal Spasm
Myenteric Plexus
Lower Esophageal Sphincter
Esophageal Achalasia
Vagus Nerve
Striated Muscle
Pharynx
Muscle Cells
Nervous System
Brain Stem
Acetylcholine
Stomach
Nitric Oxide
Central Nervous System

All Science Journal Classification (ASJC) codes

  • Gastroenterology

Cite this

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Neuromuscular control of esophageal peristalsis. / Park, HyoJin; Conklin, J. L.

In: Current Gastroenterology Reports, Vol. 1, No. 3, 01.01.1999, p. 186-197.

Research output: Contribution to journalReview article

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AB - The esophagus is a muscular conduit connecting the pharynx and the stomach. Its function is controlled by an intrinsic nervous system and by input from the central nervous system through the vagus nerve. Peristalsis in its striated muscle is directed by sequential vagal excitation arising in the brain stem, whereas peristalsis in its smooth muscle involves complex interactions among the central and peripheral neural systems and the smooth muscle elements of the esophagus. The peripheral neuronal elements responsible for producing esophageal off-response, relaxation of the lower esophageal sphincter, and hyperpolarization of the circular esophageal muscle cells reside in the myenteric plexus of the esophagus. For many years these nerves were considered nonadrenergic and noncholinergic because the inhibitory neurotransmitter released on their activation was unknown. We now know that nitric oxide or a related compound is that inhibitory neurotransmitter. The primary excitatory neurotransmitter controlling esophageal motor function is acetylcholine. Some disorders of esophageal motor function, including diffuse esophageal spasm and achalasia, may result from defects in or an imbalance between these excitatory and inhibitory neuromuscular systems.

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