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Definitions of grey matter
Definition that contains grey matter
  • cortex the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
  • hippocampus a complex neural structure (shaped like a sea horse) consisting of grey matter and located on the floor of each lateral ventricle; intimately involved in motivation and emotion as part of the limbic system; has a central role in the formation of memories
  • thalamus large egg-shaped structures of grey matter that form the dorsal subdivision of the diencephalon
  • striatum a striped mass of white and grey matter located in front of the thalamus in each cerebral hemisphere; consists of the caudate nucleus and the lenticular nucleus
  • corpus striatum a striped mass of white and grey matter located in front of the thalamus in each cerebral hemisphere; consists of the caudate nucleus and the lenticular nucleus
  • locus niger a layer of deeply pigmented grey matter in the midbrain; associated with the striate body; is involved in metabolic disturbances associated with Parkinson's disease and with Huntington's disease
  • nucleus niger a layer of deeply pigmented grey matter in the midbrain; associated with the striate body; is involved in metabolic disturbances associated with Parkinson's disease and with Huntington's disease
  • cerebral cortex the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
  • substantia nigra a layer of deeply pigmented grey matter in the midbrain; associated with the striate body; is involved in metabolic disturbances associated with Parkinson's disease and with Huntington's disease
  • dentate nucleus a large laminar nucleus of grey matter within the white matter of each cerebral hemisphere
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