Grey matter contains neural cell bodies, in contrast to white matter, which does not and mostly contains myelinated axon tracts. The color difference arises mainly from the whiteness of myelin. In living tissue, grey matter actually has a gray-brown color, which comes from capillary blood vessels and neuronal cell bodies.
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Yes, Joel Gray is Jennifer Gray's father.
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Mater Cravens butler.
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Maralou Gray's birth name is Maralou Darlene Gray.