Compilation of free information about human parts, their function, assembly, repair, and maintenance
Cuneate nucleus
| Brain: Cuneate nucleus | ||
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| 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.
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Function
The cuneate nucleus is part of dorsal column-medial lemniscus system, carrying fine touch and proprioceptive information from the upper body (above T6, excepting the face and ear - the information from the face and ear is carried by the primary sensory trigeminal nucleus) to the thalamus and cerebellum 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.
See also
Additional images
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External links
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The content of this section is licensed under the GNU Free Documentation License (local copy). It uses material from the Wikipedia article "Cuneate nucleus" modified November 23, 2009 with previous authors listed in its history.
