Cuneate nucleus

Cuneate nucleus
Brain: Cuneate nucleus
Gray691.png
Dissection of brain-stem. Dorsal view. (Label for "nucleus cuneatus" is on left, third from the bottom.)
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Section of the medulla oblongata at about the middle of the olive.
Latin nucleus cuneatus
Gray's subject #187 774
NeuroNames hier-764
NeuroLex ID birnlex_2640

One of the dorsal column nuclei, the cuneate nucleus is a wedge-shaped nucleus in the closed part of the medulla oblongata. It contains cells that give rise to the cuneate tubercle, visible on the posterior aspect of the medulla. It lies laterally to the gracile nucleus and medial to the spinal trigeminal nucleus in the medulla.

Contents

Function

The cuneate nucleus is part of dorsal column-medial lemniscus system, carrying fine touch and proprioceptive information from the upper body (above T6, except the face and ear - the information from the face and ear is carried by the primary sensory trigeminal nucleus) to the contralateral thalamus via the medial lemniscus.

Inputs

It receives direct input from the mechanoreceptors of the upper body as well as indirect input from them via the spinal cord. It is also subject to descending control from the central nervous system.

Pathology

It may be affected by vitamin E deficiency exhibiting neuroaxonal swelling.[citation needed]

See also

Additional images

External links


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Look at other dictionaries:

  • cuneate nucleus — n NUCLEUS CUNEATUS * * * n. cuneatus …   Medical dictionary

  • cuneate nucleus lateral — n. cuneatus accessorius …   Medical dictionary

  • Accessory cuneate nucleus — Infobox Brain Name = PAGENAME Latin = nucleus cuneatus accessorius GraySubject = GrayPage = Caption = Caption2 = IsPartOf = Medulla Components = Artery = Vein = Acronym = BrainInfoType = hier BrainInfoNumber = 765 MeshName = MeshNumber =… …   Wikipedia

  • accessory cuneate nucleus — n. cuneatus accessorius …   Medical dictionary

  • nucleus cuneatus — nucleus cu·ne·a·tus .kyü nē āt əs n the nucleus in the medulla oblongata in which the fibers of the fasciculus cuneatus terminate and synapse with a component of the medial lemniscus called also cuneate nucleus * * * [TA] cuneate nucleus: a… …   Medical dictionary

  • Cuneate — means wedge shaped, it can apply to: cuneate leaf, a leaf shape the cuneate nucleus, a part of the brainstem the cuneate fasciculus, a tract from the spinal cord into the brainstem This disambiguation page lists articles associated with the same… …   Wikipedia

  • Cuneate fasciculus — Fasciculus cuneatus Cuneate fasciculus is labeled in blue at upper right …   Wikipedia

  • Nucleus raphe magnus — Brain: Nucleus raphe magnus Section of the medulla oblongata at about the middle of the olive. (Raphe nuclei not labeled, but raphe labeled at left.) Latin nucleus raphes magnus NeuroNames …   Wikipedia

  • Nucleus ambiguus — Brain: Nucleus ambiguus Transverse section of medulla oblongata below the middle of the olive. ( Nucleus ambiguus labeled at center right.) Gray s subject #187 …   Wikipedia

  • Nucleus raphe obscurus — Brain: Nucleus raphe obscurus Section of the medulla oblongata at about the middle of the olive. (Raphe nuclei not labeled, but raphe labeled at left.) Latin nucleus raphes obscurus NeuroNames …   Wikipedia

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