Surface area for drug absorption The villi and microvilli responsible for the vast absorptive surface in the small intestine are of highest concentration in the duodenum and proximal jejunum.

Prev Cardiol. 2003;6(1) © 2003 Le Jacq Communications, Inc. Cite this: The Intestinal Absorption of Biliary and Dietary Cholesterol as a Drug Target for Lowering the ...