mesencephalon

/ˌmɛzɛnˈsɛfəˌlɒn/
noun
  1. The midbrain; the part of the brainstem located between the forebrain and the hindbrain, involved in functions such as vision, hearing, and movement.
    • In vertebrate anatomy, the mesencephalon is one of the three primary brain vesicles.
    • The mesencephalon contains the superior and inferior colliculi, which process visual and auditory information.
    • The mesencephalon plays a key role in coordinating eye movements.
Synonyms
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