Human Biochemistry, Volume 2 - Murray R. 1993

Special Topics
Nutrition, Digestion, and Absorption
Absorption in the Gastrointestinal Tract

Absorption in The Stomach is very weak, although ethanol can enhance this process.

Digestion AND ABSORPTION occur most intensively in the Small Intestine. Approximately 90% of digested nutrients are absorbed as they pass through it; Water is also absorbed simultaneously. This process is enhanced as food enters the Large Intestine, As a result of which the liquid Contents of the small intestine gradually become firmer upon entering the colon.

The Transport of substances absorbed in the intestine is carried out via two pathways: through the hepatic portal system, leading directly to the Liver, and through Lymphatic vessels, which communicate with the Blood via the thoracic lymphatic duct.



Last update: 06/08/2026

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