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Found Gray matter 1 time.

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1. Gray matter
The portions of the brain and spinal cord which are gray and composed of the main bodies of neuron s (called cyton s). This is in contrast to white matter , which is the portions that are white and composed of the axon s and dendrite s of neurons. In the spinal cord, the gray matter is bordered by the white matter and is shaped like a butterfly when seen in cross-section.

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