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Related Concept Videos

Anatomy of the Intestines01:23

Anatomy of the Intestines

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Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
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Small Intestine01:15

Small Intestine

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The small intestine is primarily responsible for digestion and nutrient absorption. It spans from the pyloric sphincter to the ileocecal valve and connects to the large intestine.
The small intestine is divided into three main sections - the duodenum, jejunum, and ileum. The duodenum, approximately 25 cm long, is nearest the stomach. It acts as a 'mixing bowl,' where chyme (partially digested food) blends with digestive enzymes from the pancreas and liver. The duodenum's unique...
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Large Intestine01:09

Large Intestine

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The large intestine is divided into three main regions: the cecum, colon, and rectum. Extending from the ileocecal valve to the anus, it frames the small intestine on three sides.
The ileocecal sphincter, a mucous membrane fold, guards the opening from the ileum to the large intestine. This valve permits material from the small intestine to pass into the large intestine. Attached to the ileocecal valve is the cecum. This small pouch, approximately 6 cm long, has a twisted, coiled tube known as...
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Histology of the Large Intestine01:26

Histology of the Large Intestine

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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...
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Histology of the Small Intestine01:27

Histology of the Small Intestine

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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...
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Bacterial Flora of the Large Intestine01:29

Bacterial Flora of the Large Intestine

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The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
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Related Experiment Video

Updated: Jan 24, 2026

A Protocol for Lentiviral Transduction and Downstream Analysis of Intestinal Organoids
10:58

A Protocol for Lentiviral Transduction and Downstream Analysis of Intestinal Organoids

Published on: April 20, 2015

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Small intestinal diverticula.

A I Parfenov1, L M Krums1, M V Pavlov1

  • 1A.S. Loginov Moscow Clinical Research and Practical Center of the Department of Health of Moscow, Moscow, Russia.

Terapevticheskii Arkhiv
|May 17, 2019
PubMed
Summary
This summary is machine-generated.

Small intestinal diverticula (SID) are often asymptomatic but can cause chronic diarrhea, malabsorption, or severe complications like peritonitis. Diagnosis relies on imaging and endoscopy, with treatment ranging from antibiotics to surgery for severe cases.

Keywords:
Meckel's diverticulummalabsorption syndromeparaphateral diverticulumsmall intestinal bacterial overgrowthsmall intestine diverticular disease

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Area of Science:

  • Gastroenterology
  • Surgical Gastroenterology

Background:

  • Small intestinal diverticula (SID) affect 0.5-2.3% of the population, frequently remaining asymptomatic.
  • Complications arise from small intestinal bacterial overgrowth (SIBO) leading to malabsorption and diarrhea, or diverticulitis causing pain and inflammation.

Discussion:

  • Inflammatory progression in SID can lead to serious complications including bleeding, obstruction, abscess formation, and peritonitis.
  • Specific forms like parapheral and Meckel's diverticula are recognized entities within SID.
  • Diagnostic modalities for SID primarily include radiological and endoscopic methods.

Key Insights:

  • Two case studies highlight the potential for severe malabsorption syndrome with chronic diarrhea and life-threatening complications such as abscess with perforation and peritonitis.
  • Effective management strategies for small intestine diverticular disease involve intestinal antiseptics, antibiotics, and surgical intervention for complicated cases.

Outlook:

  • Further research into the pathogenesis and optimal management of symptomatic small intestinal diverticula is warranted.
  • Improved diagnostic accuracy and timely intervention can mitigate the severe consequences of SID complications.