mesencephalon


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Related to mesencephalon: metencephalon, rhombencephalon, diencephalon

mes·en·ceph·a·lon

 (mĕz′ĕn-sĕf′ə-lŏn′, mĕs′-)
n.
The midbrain.

mes′en·ce·phal′ic (-sə-făl′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

mesencephalon

(ˌmɛsɛnˈsɛfəˌlɒn)
n, pl -la (-lə)
(Anatomy) the part of the brain that develops from the middle portion of the embryonic neural tube. Nontechnical name: midbrain Compare prosencephalon, rhombencephalon
mesencephalic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

mes•en•ceph•a•lon

(ˌmɛs ɛnˈsɛf əˌlɒn, -lən, ˌmɛz-)

n., pl. -lons, -la (-lə).
the midbrain.
[1840–50]
mes`en•ce•phal′ic (-səˈfæl ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mesencephalon - the middle portion of the brainmesencephalon - 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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
mésencéphale

mes·en·ceph·a·lon

n. mesencéfalo, el cerebro medio en la etapa embrionaria.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
Then, 21 tissues (telencephalon, hypothalamus, mesencephalon, cerebellum, myelencephalon, liver, spleen, heart, eye, skin, foregut, gill, white muscle, hindgut, midgut, red muscle, trunk kidney and gonad) were removed immediately and stored in liquid nitrogen.
FLAIR sequences show hyperintense lesions around ventricle IV (A), posterior region of the pons (B), and posterior region of the mesencephalon (C).
It incorporates input from two hemispheres, four lobes in each hemisphere (frontal, temporal, parietal, and occipital), and all five layers of the brain (from the uppermost telencephalon and adjacent diencephalon below it to the middle layers of the mesencephalon to the lower levels of the metencephalon and myelencephalon).
Nerve axons in the retina make synapses at the mesencephalon, lateral geniculate nucleus, pretectum, and hypothalamus.
Samples were taken from the brain (telencephalon, thalamus, pituitary gland, cerebellum, pons, medulla oblongata, mesencephalon), the spinal cord and dorsal root ganglions, and plantar foot skin.
Magnetic resonance imaging (MRI) revealed a unilateral well-defined lesion involving left thalamus, basal ganglia, mesencephalon, and pons.
The muscles are respectively governed by the oculomotor nerve, sympathetic nervous system tracts and fibers that are located in the mesencephalon and the cervical spinal cord.
1 case (57/m) mesencephalon, anterior commissure, mammillary bodies.
Accordingly, CMB location was recorded as lobar (frontal, temporal, parietal, insular and occipital), deep (basal ganglia, external capsule, internal capsule, thalamus, corpus callosum, and deep and periventricular white matter), and infratentorial (medulla oblongata, cerebellum, pons, and mesencephalon) separately on both sides of the brain.
Time time course of loss of dopaminergic neurons and the gliotic reaction surrounding grafts of embryonic mesencephalon to the striatum.
Description of the Specific Measurements Relative to the Plane of the Incisura Ventral to the Mesencephalon. The plane of the incisura, formed by interconnecting the Galenic venous confluence point (which includes the internal cerebral veins, the mesencephalic veins, and the basal veins of Rosenthal) with the base of the dorsum sella (Figure 1), provides the best estimate of the actual tentorial free margins forming the tentorial hiatus.