Regulation of Intestinal Epithelial Cells Properties and Functions by Amino Acids

Figure 1

A cartoon depicting the cross-sectional structure of small intestine and the major cell constituents of epithelium. The small intestine consists of four layers: mucosa, submucosa, muscle layer, and adventitia. The intestinal epithelium is lined with a single layer of polarized cells, among which the major types include enterocytes, goblet cells, Paneth cells, stem cells, and others.