Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Histology of the Small Intestine

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...

Anatomy of the Intestines

Anatomy of the Intestines

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Hemangiosarcomas in Intercostal Brown Adipose Tissues of the Sternum Induced by Urethane in TgrasH2 Mice.

Toxicologic pathology·2026

Same author

Fluorine-18 Fluorodeoxyglucose-Positron Emission Tomography/Computed Tomography for Detection of Lymph Node Metastasis in Canine Mast Cell Tumour.

Veterinary and comparative oncology·2025

Same author

Quantitative and Qualitative Evaluation of a Drawing Game Designed to Develop Visual Observational Skills in Veterinary Students Learning Cytology.

Journal of veterinary medical education·2025

Same author

Evaluation and Comparison of Tolerance of Ambiguity in Veterinary Pathology Professionals and Trainees.

Journal of veterinary medical education·2024

Same author

Phylogenetic analysis of porcine circovirus 3 circulating in Canadian pigs.

Veterinary medicine and science·2022

Same author

Comparison of Fine Arts- and Pathology-Based Observational Skills Training for Veterinary Students Learning Cytology.

Journal of veterinary medical education·2021

Search research articles

Related Experiment Video

Updated: Dec 2, 2025

A Mouse Model of Intestinal Partial Obstruction

A Mouse Model of Intestinal Partial Obstruction

Published on: March 5, 2018

Equine small intestinal angiomatosis.

Maodong Zhang¹, Ryan M Dickinson¹

¹Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4.

The Canadian Veterinary Journal = La Revue Veterinaire Canadienne

|November 5, 2020

Summary

A rare case of intestinal angiomatosis was found in a horse during surgery for a strangulating lipoma. This condition involves abnormal blood vessels in the small intestine, with this being the second reported instance in equine medicine.

More Related Videos

Rodent Model of Intestinal Ischemia-Reperfusion Injury via Occlusion of the Superior Mesenteric Artery

Rodent Model of Intestinal Ischemia-Reperfusion Injury via Occlusion of the Superior Mesenteric Artery

Published on: October 20, 2023

Isolating and Using Sections of Bovine Mesenteric Artery and Vein as a Bioassay to Test for Vasoactivity in the Small Intestine

Isolating and Using Sections of Bovine Mesenteric Artery and Vein as a Bioassay to Test for Vasoactivity in the Small Intestine

Published on: October 7, 2014

Related Experiment Videos

Last Updated: Dec 2, 2025

A Mouse Model of Intestinal Partial Obstruction

A Mouse Model of Intestinal Partial Obstruction

Published on: March 5, 2018

Rodent Model of Intestinal Ischemia-Reperfusion Injury via Occlusion of the Superior Mesenteric Artery

Rodent Model of Intestinal Ischemia-Reperfusion Injury via Occlusion of the Superior Mesenteric Artery

Published on: October 20, 2023

Isolating and Using Sections of Bovine Mesenteric Artery and Vein as a Bioassay to Test for Vasoactivity in the Small Intestine

Isolating and Using Sections of Bovine Mesenteric Artery and Vein as a Bioassay to Test for Vasoactivity in the Small Intestine

Published on: October 7, 2014

Area of Science:

Veterinary Pathology
Equine Surgery
Gastrointestinal Diseases

Background:

Strangulating lipomas are a common cause of colic in horses.
Intestinal vascular anomalies are infrequently reported in equine surgical cases.
Accurate diagnosis of gastrointestinal lesions is crucial for surgical outcomes.

Observation:

Multiple red, raised nodules were observed on the serosal surface of the jejunum during surgery.
The affected horse was a 24-year-old neutered male undergoing lipoma removal.
Nodules were present on both normal and nonviable sections of the jejunum.

Findings:

Histological examination revealed dilated, blood-filled vascular channels lined by endothelial cells.
Occasional thrombi were noted within the vascular channels.
A diagnosis of intestinal angiomatosis was made, characterized by these vascular anomalies.

Implications:

This case represents the second report of small intestinal angiomatosis in horses.
Understanding this rare condition is crucial for accurate diagnosis and surgical planning.
Further research may elucidate the pathogenesis and clinical significance of equine intestinal angiomatosis.