Gray Matter

Gray Matter: The cortex of the brain which contains nerve cell bodies. The gray matter is in contrast to the white matter, the part of the brain that contains myelinated nerve fibers. The gray matter is so named because it appears gray.


   •   •   •

Gray Matter: Region of Central Nervous System that appears darker in color than the other type, White Matter. It is composed of neuronal Cell Bodies; Neuropil; Glial Cells and Capillaries but few Myelinated Nerve Fibers.2


Types may include:3

Types of Gray Matter:

  • Cerebral Gray Matter
  • Gray Matter of the Spinal Cord
  • Neuropil

Anatomy Articles

Read about these related anatomy topics:

   •   •   •


  1. Source: RDCRN (NCATS/NIH): cms/ artfl/ Learn-More/ Glossary
  2. Source: MeSH (U.S. National Library of Medicine)
  3. Source: NCI Thesaurus

   •   •   •

Note: This site is for informational purposes only and is not medical advice. See your doctor or other qualified medical professional for all your medical needs.