Cuneate Nucleus
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Cuneate Nucleus
Cuneate nucleus
Dissection of brain-stem. Dorsal view. (Label for "nucleus cuneatus" is on left, third from the bottom.)
Section of the medulla oblongata at about the middle of the olive.
Latin nucleus cuneatus
NeuroNames 767
NeuroLex ID birnlex_2640
TA A14.1.04.206
FMA 68465
Anatomical terms of neuroanatomy

One of the dorsal column nuclei, the cuneate nucleus is a wedge-shaped nucleus in the closed part of the medulla oblongata, in the brainstem. 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.


The cuneate nucleus is part of posterior column-medial lemniscus pathway, 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.[]


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.[]


It may be affected by vitamin E deficiency exhibiting neuroaxonal swelling.[1]

See also

Additional images


  1. ^ Schmidt, Robert E.; Coleman, Bill D.; Nelson, James S. (1991). "Differential effect of chronic vitamin e deficiency on the development of neuroaxonal dystrophy in rat gracile/cuneate nuclei and prevertebral sympathetic ganglia". Neuroscience Letters. 123 (1): 102-6. doi:10.1016/0304-3940(91)90168-S. PMID 2062445.

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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