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'''Cuneate nucleus''' is a wedge-shaped nucleus in the [[Medulla oblongata|medulla]]. It is part of sensory tracts carrying tactile and proproreceptive impulsation. It sends most of impulsation to the [[thalamus]] and also in part to the [[cerebellum]].
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One of the [[dorsal column nuclei]], the '''cuneate nucleus''' is a wedge-shaped [[nucleus (neuroanatomy)|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.
   
It neighbors the [[gracile nucleus]] and the [[spinal trigeminal nucleus]] in the medulla.
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==Function==
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The cuneate nucleus is part of [[dorsal column-medial lemniscus system]], carrying [[touch|fine touch]] and [[proprioception|proprioceptive]] information to the [[thalamus]] and [[cerebellum]].
   
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==Pathology==
 
It may be affected by [[Tocopherol|vitamin E]] deficiency exhibiting neuroaxonal swelling.
 
It may be affected by [[Tocopherol|vitamin E]] deficiency exhibiting neuroaxonal swelling.
   
==External link==
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==See also==
* [http://www.neuroanatomy.wisc.edu/virtualbrain/BrainStem/05ACN.html University of Wisconsin]
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* [[Fasciculus cuneatus]]
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==Additional images==
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<gallery>
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Image:Gray680.png|Decussation of pyramids.
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Image:Gray683.png|Dissection of brain-stem. Lateral view.
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Image:Gray684.png|Deep dissection of brain-stem. Lateral view.
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Image:Gray692.png|Superior terminations of the posterior fasciculi of the medulla spinalis.
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Image:Gray699.png|Diagram showing the course of the arcuate fibers.
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Image:Gray700.png|The formatio reticularis of the medulla oblongata, shown by a transverse section passing through the middle of the olive.
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Image:Gray713.png|Scheme showing the course of the fibers of the lemniscus; medial lemniscus in blue, lateral in red.
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Image:Gray714.png|Transverse section passing through the sensory decussation.
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Image:Gray753.png|Deep dissection of cortex and brain-stem.
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Image:Gray759.png|The sensory tract.
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</gallery>
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==External links==
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* {{BrainstemWisconsin|04NGNC}}
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* {{BrainMaps|Cuneate%20nucleus|Cuneate nucleus}}
   
 
{{Rhombencephalon}}
 
{{Rhombencephalon}}
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[[Category:Brainstem]]
 
[[Category:Brainstem]]
 
[[Category:Medulla oblongata]]
 
[[Category:Medulla oblongata]]
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[[Category:Neurobiology of touch]]
   
 
{{enWP|Cuneate nucleus}}
 
{{enWP|Cuneate nucleus}}

Latest revision as of 05:37, January 12, 2008

Brain: Cuneate nucleus
Gray691
Dissection of brain-stem. Dorsal view. (Label for "nucleus cuneatus" is on left, third from the bottom.)
Gray694
Section of the medulla oblongata at about the middle of the olive.
Latin nucleus cuneatus
Gray's subject #187 774
Part of
Components
Artery
Vein
BrainInfo/UW hier-764
MeSH [1]

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.

FunctionEdit

The cuneate nucleus is part of dorsal column-medial lemniscus system, carrying fine touch and proprioceptive information to the thalamus and cerebellum.

PathologyEdit

It may be affected by vitamin E deficiency exhibiting neuroaxonal swelling.

See alsoEdit

Additional imagesEdit

External linksEdit


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