A member asked:

What is white matter of the brain and what is grey matter?

A doctor has provided 1 answer
Dr. Pamela Pappas answered

Specializes in Psychiatry

White & gray matter: The gray matter in the brain is nerve cell bodies; white matter is the fibers that grow from them. These fibers also have a sheath covering them called "myelin" which is also part of white matter. If white matter is damaged in some way -- by stroke, inflammation, or disease like ms -- it shows up on MRI scans. Gray matter can be damaged also.

Answered 7/28/2018

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