Gastrointestinal Tract Motility
Gastrointestinal Tract Motility - Related Videos
08:15
Gastrointestinal Motility Monitor (GIMM)
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Cited by 36 •
2010
Evaluation of colonic motility in the guinea pig distal colon with the Gastrointestinal Motility Monitor (GIMM) is a straightforward and simple to learn approach to quantitatively evaluate propulsive motility in the gastrointestinal tract.
02:58
Immunofluorescent Staining of Neuronal Populations in the Embryonic Murine Gastrointestinal Tract
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2025
This video demonstrates the immunostaining of the embryonic murine gastrointestinal tract to visualize and analyze the neuronal population distribution using immunofluorescence and confocal microscopy.
07:41
Video Imaging and Spatiotemporal Maps to Analyze Gastrointestinal Motility in Mice
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Cited by 63 •
2016
This article describes a video imaging technique and high-resolution spatiotemporal mapping to identify changes in the neural regulation of colonic motility in adult mice. Subtle effects on gastrointestinal (GI) function can be detected using this approach in isolated tissue preparations to advance our understanding of GI disease.
01:20
Gastrointestinal Motility Disorders
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2024
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...
01:20
Histology of the Gastrointestinal (GI) Tract
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2024
The GI tract, from beginning to end, is made up of four continuous tissue layers that adjust their structure according to their specific roles. These layers, from innermost to outermost, are known as the mucosa, submucosa, muscularis, and serosa, which are continuous with the mesentery. The mucosa is sometimes called a mucous membrane due to its mucus-secreting features. This membrane is composed of epithelium, which directly interacts with ingested substances, and the lamina propria, a layer...
FAQs
Interstitial cells of Cajal generate electrical slow waves within the gastrointestinal system. These waves provide an organizing rhythm for smooth-muscle activity, helping coordinate the contractile patterns associated with peristalsis and segmentation. Their role connects electrical activity with the physical movement of contents, making them an important focus when studying altered transit or contractility.
Motility reflects the combined regulation of smooth muscle by the enteric nervous system, autonomic input, and gastrointestinal hormones. These control systems act alongside the electrical activity generated by interstitial cells of Cajal, so changes in one regulatory influence can affect coordinated movement, transit, and the digestive processes that depend on it.
Peristalsis and segmentation are distinct coordinated patterns organized by gastrointestinal electrical activity. Considering both helps explain how motility supports the movement of contents as well as the broader handling of food, fluids, and secretions within the digestive system. This distinction is useful when evaluating how pharmacological agents alter transit or contractility.
Pharmacology addresses motility through several drug classes with different therapeutic purposes. Prokinetic drugs, antidiarrheal agents, laxatives, antispasmodics, and antiemetics are used to modify transit, contractility, or related symptoms such as diarrhea, constipation, nausea, and spasms. Comparing these categories helps link a drug’s intended effect with the motility disturbance being studied.
The regulatory framework for motility helps researchers interpret disorders in terms of altered transit or contractility rather than viewing symptoms in isolation. Constipation, diarrhea, nausea, and functional gastrointestinal dysmotility can therefore be examined alongside enteric, autonomic, hormonal, and electrical regulation. This approach supports pharmacological investigation of how movement patterns may be modified.
Relevant outcomes include changes in the movement of food, fluids, and secretions, along with effects on digestion, absorption, and elimination. Researchers also consider altered transit, contractility, and symptoms such as constipation, diarrhea, or nausea. These measures connect gastrointestinal physiology with the intended effects of prokinetic, antidiarrheal, laxative, antispasmodic, or antiemetic treatments.