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Related Concept Videos

Gastric Motility01:16

Gastric Motility

Gastric motility is the coordinated contraction and relaxation of stomach muscles that convert ingested food into chyme, a semi-liquid substance ready for further digestion in the intestines. The process begins with the vagus nerve inducing the relaxation of the smooth muscles in the fundus and body of the stomach, allowing these regions to expand and accommodate up to approximately 1.5 liters of food and liquid.
Peristaltic Waves and Chyme Formation
Upon food entry, the stomach initiates...
Gastrointestinal Motility Disorders01:20

Gastrointestinal Motility Disorders

Gastrointestinal or GI motility disorders are characterized by irregular gastrointestinal tract movements, disrupting food transit from the mouth to the anus. They are caused by damage or dysfunction in gut muscles or nerves. These disorders can cause symptoms such as severe constipation, diarrhea, abdominal pain, and swallowing difficulties. Disorders can affect any segment of the GI tract and range widely in severity, from common conditions like GERD to life-threatening conditions like...
Physiology of the Gastrointestinal System I: Ingestion and Propulsion01:22

Physiology of the Gastrointestinal System I: Ingestion and Propulsion

The physiology of the gastrointestinal system begins with ingestion as food enters the mouth.
Drugs Affecting GI Tract Motility: Dopamine Receptor Antagonists01:28

Drugs Affecting GI Tract Motility: Dopamine Receptor Antagonists

Prokinetic agents are specialized medications that stimulate gastrointestinal (GI) motility, promoting food movement through the GI tract. Dopamine, an inhibitory neurotransmitter, plays a significant role in this process, reducing GI motility and indirectly controlling the speed of digestion. Dopamine receptor antagonists, such as metoclopramide and domperidone, offer a unique advantage as prokinetic agents. By blocking the dopamine receptors, these drugs increase GI motility, improving food...
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...
Gastric Emptying01:16

Gastric Emptying

Gastric emptying occurs when the stomach gradually releases chyme into the duodenum. When the stomach is distended, it triggers the release of gastrin, a hormone that promotes gastric acid secretion to aid in digestion. Additionally, stomach distension contributes to peristaltic waves that propel gastric contents toward the pyloric region. The gastroenteric reflex, on the other hand, primarily stimulates peristalsis in the intestines, facilitating the movement of contents further along the...

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Related Experiment Video

Updated: Jun 8, 2026

Gastrointestinal Motility Monitor (GIMM)
08:15

Gastrointestinal Motility Monitor (GIMM)

Published on: December 1, 2010

Gastroduodenal motility.

Jan Tack1, Pieter Janssen

  • 1Translational Research Center for Gastrointestinal Diseases (TARGID), University of Leuven, University Hospital Gasthuisberg, Leuven, Belgium. jan.tack@med.kuleuven.ac.be

Current Opinion in Gastroenterology
|September 15, 2010
PubMed
Summary
This summary is machine-generated.

Recent research highlights advancements in understanding gastroduodenal motility and sensitivity. Key findings include new insights into duodenal inflammation and central nervous system processing for functional dyspepsia and gastroparesis.

More Related Videos

Spatiotemporal Mapping of Motility in Ex Vivo Preparations of the Intestines
12:00

Spatiotemporal Mapping of Motility in Ex Vivo Preparations of the Intestines

Published on: January 27, 2016

Related Experiment Videos

Last Updated: Jun 8, 2026

Gastrointestinal Motility Monitor (GIMM)
08:15

Gastrointestinal Motility Monitor (GIMM)

Published on: December 1, 2010

Spatiotemporal Mapping of Motility in Ex Vivo Preparations of the Intestines
12:00

Spatiotemporal Mapping of Motility in Ex Vivo Preparations of the Intestines

Published on: January 27, 2016

Area of Science:

  • Gastroenterology
  • Neurogastroenterology
  • Digestive Physiology

Background:

  • Gastroduodenal motility and sensory control abnormalities are crucial in functional dyspepsia and gastroparesis pathogenesis.
  • Understanding these mechanisms is key to addressing upper gastrointestinal symptoms.

Purpose of the Study:

  • To review recent advancements in gastroduodenal motility and sensitivity.
  • To explore the pathogenesis of functional dyspepsia and gastroparesis.

Main Methods:

  • Review of current research on gastroduodenal function.
  • Analysis of studies utilizing wireless motility monitoring capsules (e.g., SmartPill).
  • Investigation of genetic, inflammatory, and central processing factors.

Main Results:

  • Emerging focus on duodenal sensitivity and low-grade inflammation in functional dyspepsia.
  • Investigation into genetic polymorphisms associated with functional dyspepsia.
  • Growing interest in central processing of visceral stimuli for symptom generation.
  • Exploration of novel therapeutic strategies, including pharmacotherapy and gastric electrical stimulation.

Conclusions:

  • Progress is being made in understanding gastroduodenal symptom pathogenesis.
  • Key advances include recognizing low-grade duodenal inflammation and the role of central nervous system processing.
  • Novel pharmacotherapeutic approaches are under investigation.