Digestion and Absorption

4/4/2001


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Table of Contents

Digestion and Absorption

Structure of the small intestine

Epithelial cells are polarized

Main carbohydrates in food

Brush-border saccharidases and substrates

Sodium and sugar cotransport model

Intestinal absorption of sugars

Activation of pancreatic proteases

Absorption of peptides and amino acids

Glycine is absorbed more rapidly by the human small intestine in the form of diglycine or tryglycine than as free glycine

Standing osmotic gradient hypothesis for fluid absorption by epithelia

Ion transport mechanisms in Jejunum and Colon

Mechanism of secretion by crypt epithelial cells

Calcium is absorbed through cellular and paracellular pathways

Intestinal iron absorption

Absorption of vitamins

Author: Fernando Garcia-Diaz

Email: fgarcia@bu.edu

Home Page: http://people.bu.edu/fgarcia/lectures