neural structure - a structure that is part of the nervous system

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

locus niger, nucleus niger, substantia nigra - a layer of deeply pigmented gray 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