What is gray matter?

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The gray matter is called the gray matter. Gray's Anatomy (1918) describes it as the nervous tissue made mostly of nerve-cell bodies and their short processes.

Summary

The gray matter is called the gray matter. Gray's Anatomy (1918) describes it as the nervous tissue made mostly of nerve-cell bodies and their short processes.

What it is

  • The nervous tissue made mostly of nerve-cell bodies and their short processes.
  • Appears gray in unstained tissue.
  • The site where signals originate and are processed.

Where it is

  • Forms the cortex on the outside of the cerebrum and cerebellum.
  • Forms deeper 'nuclei' within the brain.
  • Forms the central H-shaped column of the spinal cord.

Sources

According to Gray's Anatomy of the Human Body (1918, public domain):

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