Glossary

Cortex

Cortex

Also: Rinde, Kortex

The cortex is the outer layer of an organ, such as the cerebral cortex or the renal cortex. In structure and function it differs from the inner region, known as the medulla.

Symptoms rather than terms?

Describe what's going on — we'll find the right doctor for you.

Editorial content · as of 9/5/2026