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Spinal accessory nucleus



Brain: Spinal accessory nucleus
The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue. (Spinal accessory nucleus is at "XI".)
Latin nervus spinalis nervi accessorii
NeuroNames ancil-999
Dorlands/Elsevier n_11/12583456

The spinal accessory nucleus lies within the cervical spinal cord (C1-C5) in the ventral horn. The nucleus ambiguus is classically said to provide the "cranial component" of the accessory nerve. However, the very existence of this cranial component has been recently questioned and seen as contributing exclusively to the vagus nerve.

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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Spinal_accessory_nucleus". A list of authors is available in Wikipedia.
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