Villus

Definition

A villus is a small, finger-like projection found in the lining of the small intestine, which increases the surface area for nutrient absorption. Each villus contains blood vessels and a lymphatic vessel (lacteal) to transport absorbed nutrients.

Related terms

Microvilli:

Tiny hair-like structures on the surface of each villus that further increase the surface area for absorption.

Lacteal: A lymphatic vessel located in the center of a villus, responsible for absorbing and transporting fats from digested food.

Absorption:

The process by which nutrients from digested food are taken into the bloodstream or lymphatic system through the walls of the intestines