The outer layer of the brain is grey matter, but the outer layer of the spinal cord is white matter.

Name: The outer layer of the brain is grey matter, but the outer layer of the spinal cord is white matter.
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The outer layer of the brain is composed of grey matter, which contains neuron cell bodies, while the outer layer of the spinal cord is composed of white matter, which contains myelinated axons that facilitate the transmission of nerve signals.

The Outer Layer of the Brain Is Grey Matter, but the Outer