midbrain(redirected from mesencephalon [NA6])
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The portion of the vertebrate brain that develops from the middle section of the embryonic brain.
(Anatomy) the nontechnical name for mesencephalon
the middle of the three primary divisions of the brain in the embryo of a vertebrate or the part of the adult brain derived from this tissue; mesencephalon.
The top of the brain stem, between the diencephalon and the pons. It is largely a relay station for sensory impulses.
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|Noun||1.||midbrain - the middle portion of the brain |
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 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