Intestinal villi (singular: villus)are tiny, finger-like projections that line the interior (lumen) of the small intestine.

The amount of small intestine lamina propria T-cells in M cell ... M cells were found to transport dietary antigens from the lumen to dendritic cells, thereby inducing T-cell activity.

In bile, cholesterol, bile acids and phospholipids form mixed micelles. Bile acids are secreted into small intestine lumen, where bile acids facilitate dietary lipid absorption. Bile acids are ...