mesencephalon


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Related to mesencephalon: metencephalon, rhombencephalon, diencephalon
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Synonyms for mesencephalon

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MRI scans were analyzed by two experienced pediatric neuroradiologists with particular attention to the supratentorial area (including frontal, temporal, parietal and occipital hemisphere regions and the centrum semiovale and corona radiata), the internal capsule, corpus callosum, basal ganglia, thalamus, mesencephalon, pons, and cerebellum.
Barker, "The importance of A9 dopaminergic neurons in mediating the functional benefits of fetal ventral mesencephalon transplants and levodopa-induced dyskinesias," Neurobiology of Disease, vol.
Common causes of hydrocephalus in pediatric age found in present study: Aqueductal stenosis: The growth of the tectum and tegmentum makes the lumen of the neural tube narrow in the region of mesencephalon, leading to narrowing of aqueduct of Sylvius.
In most cadaveric dissection, Liliequist's membrane was composed of two distinct leaves: A diencephalic leaf directed toward the diencephalon (separated chiasmatic and interpeduncular cisterns) and a mesencephalic leaf directed toward the mesencephalon (separated interpeduncular and prepontine cisterns).
The ventral tegmental area (VTA) is a part of mesolimbic dopamine system located in the medial portion of the ventral mesencephalon.
In order to pinpoint the specific mechanism, Lanca performed fetal dopaminergic transplants of ventral mesencephalon and found increased DA levels and a 40 to 50% reduction in voluntary alcohol intake; in contrast, this effect was not observed in rats receiving a sham-operation with dopamine-poor transplants.
Neurones appeared along the dorsal midline of the alar plate in the mesencephalon that formed the nucleus of the DTmesV (nmesV) giving rise to the DTmesV (Figure 2(b), arrow).
Dissection of the fixed brain should always be standardized and basic sampling for dementia evaluation should include blocks from the frontal, parietal, and temporal cortex; occipital cortex around the calcarine fissure; the hippocampus at the level of lateral geniculate body; the striatum; the mesencephalon at the level of the oculomotor nerve; the pons at the level of the locus coeruleus; the medulla oblongata at the level of the inferior olives; and the cerebellum and dentate nucleus.
Cranial CT showed hyperdense mass lesions, and contrast-enhanced cranial magnetic resonance imaging (MRI) detected multiple hypodense nodular lesions that were abscess-like (Figure 2) and ring enhancing in the frontal mesencephalon region and cerebella regions.
Figure-2: FLAIR axial sections; hyperintense symmetrical lesions seen in tegmentum, pons, mesencephalon, periaqueductal gray matter, hypothalamus, optic tract and the medial thalamus bilaterally.
2) Colour-coded functional anisotropic maps evaluate for the presence of a focal red dot anterior to the mesencephalon, adjacent to the interpeduncular fossa, which represents the decussation of these fibre tracts (Fig.
However, on day 13, MRI scans showed bilateral and symmetric T2 and FLAIR hypersignals in the medulla, the pons, and the mesencephalon, compatible with rhomboencephalitis (Figure, panel B).
Affected brains had pathological changes in the mesencephalon, medulla oblongata, and cerebellum.
org/wiki/Midbrain_tectum) tectum 6 located in the roof of the midbrain, or mesencephalon 6 which disappeared when the spot was removed from view; in the video, you can see regions of the brain light up and then dim when the prey appears and disappears from view.
Embryonic substantia nigra grafts in the mesencephalon send neurites to the host striatum in non-human primate after overexpression of GDNF.
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