Spinal accessory nucleus
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206558182
2008-04-18T20:07:35Z
Arcadian
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{{Infobox Brain|
Name = {{PAGENAME}} |
Latin = nervus spinalis nervi accessorii |
GraySubject = |
GrayPage = |
Image = Gray696.png |
Caption = The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue. (Spinal accessory nucleus is at "XI".) |
Image2 = |
Caption2 = |
IsPartOf = |
Components = |
Artery = |
Vein = |
BrainInfoType = ancil |
BrainInfoNumber = 999 |
MeshName = |
MeshNumber = |
DorlandsPre = n_11 |
DorlandsSuf = 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]].
The terminology continues to be used in describing both human anatomy,<ref name="pmid10739022">{{cite journal |author=Routal RV, Pal GP |title=Location of the spinal nucleus of the accessory nerve in the human spinal cord |journal=[[J. Anat.]] |volume=196 ( Pt 2) |issue= |pages=263-8 |year=2000 |pmid=10739022 |doi= |url=http://www.blackwell-synergy.com/openurl?genre=article&sid=nlm:pubmed&issn=0021-8782&date=2000&volume=196&issue=&spage=263}}</ref> and that of other animals.<ref name="pmid17428204">{{cite journal |author=Ullah M, Mansor O, Ismail ZI, Kapitonova MY, Sirajudeen KN |title=Localization of the spinal nucleus of accessory nerve in rat: a horseradish peroxidase study |journal=[[J. Anat.]] |volume=210 |issue=4 |pages=428-38 |year=2007 |pmid=17428204 |doi=10.1111/j.1469-7580.2007.00709.x |url=http://www.blackwell-synergy.com/openurl?genre=article&sid=nlm:pubmed&issn=0021-8782&date=2007&volume=210&issue=4&spage=428}}</ref>
==Additional images==
<gallery>
Image:Gray697.png|Nuclei of origin of cranial motor nerves schematically represented; lateral view.
Image:Gray698.png|Primary terminal nuclei of the afferent (sensory) cranial nerves schematically represented; lateral view.
</gallery>
==References==
{{reflist}}
==External links==
* [http://www.sylvius.com/index/s/spinal_accessory_nucleus.html Sylvius]
* [http://hsc.unm.edu/touch/datasets/datasets/31/index.shtml University of New Mexico]
* [http://www.georgetown.edu/dml/educ/neurolab/slideGT8andKey.htm Georgetown]
{{Cranial nerves}}
[[Category:Brainstem]]
[[Category:Cranial nerves]]
[[Category:Neuroanatomy]]