Medial geniculate nucleus

Encyclopedia : M : ME : MED : Medial geniculate nucleus

Thalamic nuclei:
MNG = Midline nuclear group
AN = Anterior nuclear group
MD = Medial dorsal nucleus
VNG = Ventral nuclear group
VA = Ventral anterior nucleus
VL = Ventral lateral nucleus
VPL = Ventral posterolateral nucleus
VPM = Ventral posteromedial nucleus
LNG = Lateral nuclear group
PUL = Pulvinar
MTh = Metathalamus
LG = Lateral geniculate nucleus
MG = Medial geniculate nucleus
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|- style="text-align: center; line-height: 1;" class="hiddenStructure" | colspan="2" |Hind- and mid-brains; postero-lateral view. (Medial geniculate body visible near top.) |- class="hiddenStructure" |Latin |colspan="2"| |- class="hiddenStructure" | |colspan="2"|[subject #188 ] |- class="hiddenStructure" |Part of |colspan="2"| |- class="hiddenStructure" |Components |colspan="2"| |- class="hiddenStructure" |Artery |colspan="2"| |- class="hiddenStructure" |Vein |colspan="2"| |- class="hiddenStructure" |Acronym(s) |colspan="2"| |- class="hiddenStructure" |NeuroNames |colspan="2"|[hier-338] |- class="hiddenStructure" |MeSH |colspan="2"|[] |- class="hiddenStructure" |Dorlands/Elsevier |colspan="2"|[/] |}
The medial geniculate nucleus is a nucleus of the thalamus that acts as a relay for auditory information. It receives its input from the inferior colliculus and sends information out to the auditory cortex.

Relationship to auditory system
This nucleus is part of the thalamic relay system located inferiorly and posteriorly in the diencephalon. This nucleus is organized into three separate layers, and maintains the tonotopic organization of most other preceding nuclei. Most functions of the inferior colliculus are preserved, and are relayed to the auditory cortex.

See also
auditory system
References
1) Kandel, et al Principles of Neuroscience. Fourth ed. pp 591-624. Copyright 2000, by McGraw-Hill Co.
Brain: Medial geniculate nucleus

Sensory system - Auditory system - [http://encycl.opentopia.com/ edit]
Outer ear: Pinna > Ear canal Middle ear: Eardrum | Ossicles (Malleus, Incus & Stapes) | Stapedius | Tensor tympani | Eustachian tube
Inner ear: Cochlea (Scala vestibuli, Scala media & Scala tympani) | Oval window | Helicotrema | Round window | Basilar membrane | Reissner's membrane | Organ of Corti | Hair cells | Stereocilia
Brain: Cochlear nerve^VIII → Cochlear nuclei → Superior olivary nuclei → Inferior colliculi → Medial geniculate nuclei → Primary auditory cortex

Diencephalon - [http://encycl.opentopia.com/ edit]

third ventricle, interventricular foramina, optic chiasm, subfornical organ
epithalamus: pineal body, habenula, habenular nuclei
anterior hypothalamus: paraventricular nucleus, supraoptic nucleus, suprachiasmatic nucleus
intermediate/middle/tuberal hypothalamus: infundibulum, median eminence, arcuate nucleus, ventromedial nucleus
pituitary gland: anterior pituitary, posterior pituitary
posterior hypothalamus: posterior nucleus, mammillary body
subthalamus: subthalamic nucleus
thalamus: pulvinar,medial geniculate nucleus, lateral geniculate nucleus, list of thalamic nuclei

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