Medical Definition of Striatum

Striatum: Part of the basal ganglia of the brain. The basal ganglia are interconnected masses of gray matter located in the interior regions of the cerebral hemispheres and in the upper part of the brainstem.

The striatum is also called the striate body. It includes the caudate nucleus and the lentiform nucleus. The term striatum (striate) refers to the layered appearance of bands of gray matter that course from one of these nuclei to the other and represent the connections between them.

Quick GuideDementia, Alzheimer's Disease, and Aging Brains

Dementia, Alzheimer's Disease, and Aging Brains

Subscribe to MedicineNet's General Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.


Last Editorial Review: 5/13/2016

Health Solutions From Our Sponsors