mes·en·ceph·a·lon

(mĕz′ĕn-sĕf′ə-lŏn′, mĕs′-)

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.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

mesencephalon - the middle portion of the brain

midbrain

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

Translations

mésencéphale

mes·en·ceph·a·lon

n. mesencéfalo, el cerebro medio en la etapa embrionaria.

English-Spanish Medical Dictionary © Farlex 2012

Mentioned in

References in periodicals archive

Mesencephalon. The mesencephalon is linked with the diencephalon and the pons (Fig.

Comparative Morphology and Histology of the Brain in Chinese Toad (Bufo gargarizans) and Chinese Fire-billed Newt (Cynops orientalis)/Morfologia e Histologia Comparada del Cerebro en el Sapo Chino (Bufo Gargarizans) y el Triton Vientre de Fuego Chino (Cynops orientalis)

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.

Molecular Cloning and Function Characterization in Feeding of Neuropeptide Y in Gibel Carp, Carassius auratus gibelio

FLAIR sequences show hyperintense lesions around ventricle IV (A), posterior region of the pons (B), and posterior region of the mesencephalon (C).

Enterovirus A71 Infection and Neurologic Disease, Madrid, Spain, 2016

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).

The science and poetry in learning (and teaching) to read: Reading requires multiple parts of the brain to work rapidly and in tandem. As a result, more than one form of instruction is required to build and connect all the processes that make up this essential skill

Nerve axons in the retina make synapses at the mesencephalon, lateral geniculate nucleus, pretectum, and hypothalamus.

Optical coherence tomography findings in conversion disorder: are there any differences in the etiopathogenesis of subtypes?

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.

Preliminary Findings of Structure and Expression of Opioid Receptor Genes in a Peregrine Falcon (Falco pevegrinus), a Snowy Owl (Bubo scandiacus), and a Blue-fronted Amazon Parrot (Amazona aestiva)

Magnetic resonance imaging (MRI) revealed a unilateral well-defined lesion involving left thalamus, basal ganglia, mesencephalon, and pons.

Unilateral Isolated Basal Vein Thrombosis Associated with Deep Cerebral Venous Infarction

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.

A Custom-made Pupillometer System for Characterizing Pupillary Light Response

1 case (57/m) mesencephalon, anterior commissure, mammillary bodies.

Primary Hypothalamic Lymphoma in an Adult Male: A Case Report and Literature Review

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.

Cognitive Dysfunction in Relation to Topography and Burden of Cerebral Microbleeds

Time time course of loss of dopaminergic neurons and the gliotic reaction surrounding grafts of embryonic mesencephalon to the striatum.

Astrogliosis has Different Dynamics after Cell Transplantation and Mechanical Impact in the Rodent Model of Parkinson's Disease

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.

An Objective Study of Anatomic Shifts in Intracranial Hypotension Using Four Anatomic Planes