lateral geniculate nucleus

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Related to Lateral geniculate: medial geniculate

dorsal lateral geniculate nu·cle·us

[TA]
main division of the lateral geniculate body; consists of two magnocellular layers [TA] (strata magnocellularia [TA]) and four parvocellular layers [TA] (strata parvocellularia [TA]) and serves as a processing station in the major pathway from the retina to the cerebral cortex, receiving fibers from the optic tract and giving rise to the geniculocalcarine radiation to the visual cortex in the occipital lobe.
Farlex Partner Medical Dictionary © Farlex 2012

lateral geniculate nucleus

The visual relay nucleus of the thalamus. It is a set of nuclei located on the bottom rear edges of the thalamus, lateral to the medial geniculate nucleus. Axons from the retinal ganglion cells of the retina reach the lateral geniculate via the optic nerve and optic tract and then synapse in topographic order. The outflow axons from the lateral geniculate neurons run in the optic radiation and synapse in the primary visual cortex in the occipital hemisphere, again maintaining their topographic organization.
See also: nucleus
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
The input is applied to neurons in the first row of the lateral geniculate nuclei.
(2002) Saccadic eye movements modulate visual responses in the lateral geniculate nucleus.
Deficient responses from the lateral geniculate nucleus in humans with amblyopia.
Color and contrast sensitivity in the lateral geniculate body and primary visual cortex of the macaque monkey.
Cortical structures such as the medial and lateral geniculate bodies, inferior and superior colliculi have higher glucose utilization than other structures (Siesjo, 1978).
But all that changes quickly The macula and lateral geniculate nucleus are fully developed by 4 months, rapid synaptogenesis in the visual cortex has reached its peak at 8 months, and myelin deposition around the optic nerve is complete by about age 2.
The anterior choroidal artery (Table 1) is responsible for supplying blood to deep structures of the brain including the globus pallidus (basal ganglia), lateral geniculate body (thalamus), posterior limb of the internal capsule and medial temporal lobe.[8,17] Occlusion of the anterior choroidal artery results in contralateral hemiplegia, hemihypesthesia and homonymous hemianopia.[4]
(2) It is true that there is considerable variation in the neutral points and maximal response points of individual colour-opponent cells in the lateral geniculate nucleus.
The optic nerve passing optic canal ran from the eyeball to the optic chiasm; the optic tract ran from the optic chiasm to the lateral geniculate nucleus; the optic radiation ran from the lateral geniculate nucleus to the calcarine sulcus (Fig.
Even in the early stages of the visual system (lateral geniculate nucleus; (4, 5) primary visual cortex (V1) (6-8)), the activity is modulated by extra-retinal signals such as corollary discharges.

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