Spinal accessory nucleus 4303071 206558182 2008-04-18T20:07:35Z Arcadian 104523 nav {{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]]