Ileum

Definition

The ileum is the final and longest segment of the small intestine, where the absorption of vitamins, minerals, and other nutrients is completed. It connects to the large intestine at the ileocecal valve.

Related terms

Small Intestine:

A part of the gastrointestinal tract between the stomach and large intestine that digests food and absorbs nutrients.

Ileocecal Valve: A sphincter muscle located between the ileum and the cecum of the large intestine that controls the flow of digested material.

Absorption:

The process by which nutrients from digested food are taken into the bloodstream from the intestines