mesencephalon definition

  • noun:
    • The midbrain.
    • part of the mind positioned rostral towards pons and caudal towards thalamus therefore the basal ganglia, consists of the tectum (dorsal section) therefore the tegmentum (ventral part).
    • The middle segment for the brain; the midbrain. Often abbreviated to mesen. See brain.
    • The midbrain; a segment of this encephalon consisting basically associated with corpora quadrigemina or optic lobes and the crura cerebri. See brain. Additionally mesencephal, mesocephalon.
    • the center portion of mental performance

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