Unit page, primary language: EN, subsidiary: LA, interface: EN, work in progress

accessory nerve (pair)

Identification
Official Latin term nervus accessorius (par)
Official term accessory nerve (pair)
Unit identifier TAH:U6550
Unit type pair
Materiality material
Navigation
Link to the unit accessory nerve (pair)
Links of entity generic: accessory nerve
Entity-oriented links Universal page Definition page
External links TA98 FMA PubMed
Partonomic links Level 2: subdivision of cranial nerves Short Extended
Level 3: accessory nerve (pair)
Taxonomic links Level 2: neural tree organ
Subsidiary language with Latin
Non Latin primary language
Taxonomic definition
Taxonomic definition An accessory nerve is a neural tree organ [organum arbor nervosum ] which has somas in the spinal chord and has a short path in the cranium entering the foramen magnum and exiting through the jugular foramen.
Notes
Although it was suggested that Cranial roots and Vagal communicating branches of the Nervus accessorius are uncommon (Lachman N, Acland RD, Rosse C 2002 Anatomical evidence for the absence of a morphologically distinct cranial root of the accessory nerve in man. Clin Anat 15:4-10; Ryan S, Blyth P, Duggan N, Wild M, Al-Ali S 2007 Is the cranial accessory nerve really a portion of the accessory nerve? Anat Sci Int 82:1-7), a recent microsurgical approach on 43 adult cadavers revealed that Cranial roots of the Accessory nerve exist in the majority of adult humans (Tubbs RS, Benninger B, Loukas M, Cohen Gadol AA 2014 Cranial roots of the accessory nerve exist in the majority of adult humans. Clin Anat 27:102-107).
Partonomy
TAH:E10200
human body
TAH:U5062
nervous system SOS
TAH:U6322
peripheral nervous system SOS
TAH:U8353
subdivision of cranial nerves SOS
TAH:U6367
cranial nerves (pair) VOS
TAH:U6550 accessory nerve (pair) UOV
TAH:U9363
roots of accessory nerve (pair) VOU
TAH:U6553
trunk of accessory nerve (pair) UOU
TAH:U6554
internal branch (pair) UOU
TAH:U6555
external branch (pair) UOU
TAH:U6556
muscular branches (pair) VOU
Total
9 children
Taxonomy
Date: 25.06.2025