mesencephalon

Noun
  1. The middle portion of the brain (synset 105507479)
    is a type of: neural structure - a structure that is part of the nervous system
    has:
    • locus niger, nucleus niger, 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
    • superior colliculus - an essential visual center between the retina and the striate cortex
    • inferior colliculus - an essential auditory center in the midbrain
    is a part of: brain, encephalon - that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord
    same as: midbrain

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