During fetal development, the small intestine undergoes several invaginations, where the small bowel becomes ensheathed. The result is formation of multiple villi and microvilli. Intestinal villi ...

Villi are tiny, hair-like projections and tissues composed of the cells lining your small intestine's inside walls. They serve a critical role in digestion, absorbing nutrients from food and ...

Netrin-1 was found mainly at the base of the crypts of the intestinal villi and decreased in a gradient towards the distal end, whereas DCC was expressed throughout the intestinal epithelium.