Gray matter is a tissue of the central nervous system of a grayish color. It is located in the encephalon
and spinal cord
, at the bottom and on the surface of the brain. It is a complex structure consisting of nerve cells
and non-neural glia (interstitial tissue that protects cells). The gray matter plays a role in receiving messages, reviewing the information, and preparing responses. Some diseases
(such as Alzheimer's disease
) are caused by lesions
in the gray matter of the cortex.
Original article published by
. Translated by christelle.b
Latest update on August 20, 2014 at 05:38 AM by christelle.b.