Related Experiment Video
Updated: Jul 11, 2026

Functional Assessment of Intestinal Tight Junction Barrier and Ion Permeability in Native Tissue by Ussing Chamber Technique
Published on: May 26, 2021
Water and electrolyte absorption and secretion in the small intestine
1Institution Digestive Diseases Research Centre, St. Bartholomew's and The Royal London School of Medicine and Dentistry, Start 1, 2, Newark Street, London E1 2AD, UK.
Abstract:
The use of gene-knockout mice permits an increased insight into the role of specific transport proteins and membrane receptors in epithelial water and electrolyte transport. Data on the secondary coupling of water transport to Na-glucose cotransport and the mechanism of action of a number of prosecretory and proabsorptive enteric neurotransmitters are reviewed. Nitric oxide and some experimental treatments with therapeutic potential for cholera toxin-induced water and electrolyte secretion are discussed. A putative role of uroguanylin in intestinal bicarbonate secretion is explored.
More Related Videos
04:40Demonstration of Membrane Transport of Histidine using Goat Intestinal Inverted Sacs: An Experiential Pedagogical Tool for Undergraduates
Published on: October 4, 2024
09:13Two-dimensional Porcine Intestinal Organoids Reflecting the Physiological Properties of Native Gut
Published on: January 31, 2025
Related Concept Videos
Mineral, Vitamin and Water Absorption
Reabsorption and Secretion in the PCT
Transport mechanisms involving sodium ions (Na+) contribute significantly to solute reabsorption. These mechanisms include symport and antiport processes.
A key example is the...
Reabsorption and Secretion in the Loop of Henle
Reabsorption and Secretion in the DCT and Collecting Duct
The distal part of the DCT, along with the...
Physiology of the Gastrointestinal System II: Digestion and Absorption
Digestion begins in the mouth, where food undergoes mechanical breakdown by chewing and combines with saliva. Salivary amylase, an enzyme in saliva, starts the breakdown of starches into maltose. The food then travels down the esophagus to the stomach.
In the stomach, a...
Absorption of Nutrients
Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...