A cranial nerve that originates from neurons in the medulla and in the cervical spinal cord. [ http://orcid.org/0000-0002-6601-2165 BIRNLEX : 812 ]

This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, pheno_slim

latin term
nervus accessorius [XI] [ FMA : TA FMA : 6720 ]
latin term
radix spinalis nervus accessorius [ FMA : TA FMA : 6720 ]
latin term
pars spinalis nervus accessorius [ FMA : TA FMA : 6720 ]
definition
  • A cranial nerve that originates from neurons in the medulla and in the cervical spinal cord.
depicted by
  • http://upload.wikimedia.org/wikipedia/commons/5/5e/Gray791.png
dubious for taxon
  • http://purl.obolibrary.org/obo/NCBITaxon_8292
external definition
  • A small motor nerve which emerges from the lateral wall of the medulla with the roots of the vagus nerve, and innervates a single pectoral suspensory muscle, the m.cucullaris.
  • Small motor nerve which innervates a single pectoral suspensory muscle, the m. cucullaris.[AAO]
  • Cranial nerve that innervates the sternocleidomastoid and trapezius complex of muscles. [Bemis_WE, Functional_Anatomy_of_the_Vertebrates:_An_Evolutionary_Perspective, Glossary_G-1, Grande_L, Liem_KF, Third_Edition_(2001)_Orlando_Fla.:_Harcourt_College_Publishers, Walker_WF][VHOG]
external ontology notes
  • FMA has distinct cranial and spinal parts - WP says 'Traditional descriptions of the accessory nerve divide it into two parts: a spinal part and a cranial part.[1] However, because the cranial component rapidly joins the vagus nerve, becoming an integral part of said nerve, modern descriptions often consider the cranial component to be part of the vagus nerve and not part of the accessory nerve proper.[2]
has exact synonym
  • cervical accessory nerve
  • radix spinalis nervus accessorius
  • accessory nerve [XI]
  • Willis' nerve
  • pars spinalis nervus accessorius
  • accessory nerve
  • accessory XI
  • eleventh cranial nerve
  • spinal part of accessory nerve
  • nervus accessorius [XI]
  • spinal accessory nerve
  • accessory XI nerve
  • spinal accessory nerve tree
  • cranial nerve XI
has related synonym
  • accessory spinal nerve
  • CN-XI
homology notes
  • Cranial nerves XI and XII evolved in the common ancestor to amniotes (non-amphibian tetrapods) thus totalling twelve pairs.[well established][VHOG]
id
  • UBERON:0002019
taxon notes
  • In mice, the spinal branch of this motor nerve innervates the trapezius and the sternocleidomastoid muscles. The cranial branch joins the vagus nerve and innervates the same targets as the vagus nerve