midbrain

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midbrain:

see brainbrain,
the supervisory center of the nervous system in all vertebrates. It also serves as the site of emotions, memory, self-awareness, and thought. Anatomy and Function
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midbrain

[′mid‚brān]
(anatomy)
Those portions of the adult brain derived from the embryonic midbrain.
(embryology)
The middle portion of the embryonic vertebrate brain. Also known as mesencephalon.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Sunami, "Bilateral ptosis with pupil sparing because of a discrete midbrain lesion: magnetic resonance imaging evidence of topographic arrangement within the oculomotor nerve," Journal of Neuro-Ophthalmology, vol.
Midbrain lesions were found in six (7%) patients and pontine lesions in 22 (25%) cases.
This arrangement may account for clinical observations that focal upper midbrain lesions can cause palsies of just one or a few muscles innervated by the 3rd nerve.