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Related Concept Videos

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...
Histology of the Large Intestine01:26

Histology of the Large Intestine

The large intestine, a vital component of the gastrointestinal tract, is structured with four main layers: the mucosa, submucosa, muscularis, and serosa. Each layer performs a distinct role in facilitating the smooth functioning of the large intestine.
The innermost mucosa layer comprises simple columnar epithelium, lamina propria, and muscularis mucosae. This layer is primarily populated with absorptive cells, tasked with water absorption, and goblet cells, responsible for secreting mucus to...
Histology of the Gastrointestinal (GI) Tract01:20

Histology of the Gastrointestinal (GI) Tract

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...
Histology of the Small Intestine01:27

Histology of the Small Intestine

The small intestine exhibits a unique histological structure that significantly enhances its function in digestion and nutrient absorption. These structures include circular folds, villi, and various specialized cells that collectively facilitate the digestion of food.
The intestinal lining features transverse folds called circular folds, each housing fingerlike projections known as intestinal villi. These villi are covered by a layer of simple columnar epithelium, also referred to as...
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
Stomach Histology01:26

Stomach Histology

The stomach comprises several layers that work together to facilitate digestion and protect the organ. The outermost layer is called the serosa, which provides support and protection to the stomach. The muscularis externa layer is responsible for the mechanical breakdown of food by contracting and moving the stomach. The submucosa layer, located beneath the muscularis externa, contains connective tissue, blood vessels, nerves, and glands that secrete mucus and other substances essential for...

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Related Experiment Video

Updated: May 9, 2026

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation
09:42

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation

Published on: August 26, 2014

Real-time histology in colonoscopy.

Martin Goetz1

  • 1Innere Medizin I, Universitätsklinikum Tübingen, Otfried-Müller-Street 10, Tübingen 72076, Germany. martin.goetz@med.uni-tuebingen.de

Gastroenterology Clinics of North America
|August 13, 2013
PubMed
Summary

Recent advancements in gastrointestinal endoscopy, including high-definition imaging and advanced microscopy, now allow for real-time visualization of cellular details, moving beyond traditional morphological predictions.

Keywords:
ChromoendoscopyColonoscopyEndomicroscopyEndoscopyHistologyVirtual chromoendoscopy

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Visualization of Gut Microbiota-host Interactions via Fluorescence In Situ Hybridization, Lectin Staining, and Imaging
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Visualization of Gut Microbiota-host Interactions via Fluorescence In Situ Hybridization, Lectin Staining, and Imaging

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Last Updated: May 9, 2026

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation
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Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation

Published on: August 26, 2014

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
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Visualization of Gut Microbiota-host Interactions via Fluorescence In Situ Hybridization, Lectin Staining, and Imaging
09:31

Visualization of Gut Microbiota-host Interactions via Fluorescence In Situ Hybridization, Lectin Staining, and Imaging

Published on: July 9, 2021

Area of Science:

  • Gastroenterology
  • Medical Imaging
  • Endoscopy Technology

Background:

  • Gastrointestinal endoscopy has undergone significant technological evolution.
  • Traditional endoscopy relies on morphological patterns for histological prediction.

Purpose of the Study:

  • To review recent technological improvements in gastrointestinal endoscopy.
  • To highlight how new technologies enable real-time cellular-level analysis.

Main Methods:

  • High-definition endoscopy for detailed mucosal visualization.
  • Filter techniques for enhanced vessel and surface structure analysis.
  • Autofluorescence imaging for functional tissue alteration assessment.
  • Endocytoscopy for ultrahigh-contact cellular epithelium analysis.
  • Endomicroscopy for real-time intravital microscopy.

Main Results:

  • High-definition endoscopy provides enhanced mucosal detail.
  • Advanced imaging techniques offer functional and structural insights.
  • Microscopy-based methods allow for cellular and subcellular visualization.

Conclusions:

  • Endoscopic technology has advanced from morphological prediction to real-time histology.
  • Novel endoscopic tools provide unprecedented visualization of tissue at cellular levels.
  • These advancements transform diagnostic capabilities during endoscopic procedures.