Anatomy

Accessory Nerve

The 11th cranial nerve which originates from NEURONS in the MEDULLA and in the CERVICAL SPINAL CORD. It has a cranial root, which joins the VAGUS NERVE (10th cranial) and sends motor fibers to the muscles of the LARYNX, and a spinal root, which sends motor fibers to the TRAPEZIUS and the sternocleidomastoid muscles.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The 11th cranial nerve which originates from NEURONS in the MEDULLA and in the CERVICAL SPINAL CORD. It has a cranial root, which joins the VAGUS NERVE (10th cranial) and sends motor fibers to the muscles of the LARYNX, and a spinal root, which sends motor fibers to the TRAPEZIUS and the sternocleidomastoid muscles.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

20 entry terms
  • Cranial Nerve XI
  • Eleventh Cranial Nerve
  • Nerve XI
  • Nervus Accessorius
  • Spinal Accessory Nerve
  • Accessorius, Nervus
  • Accessory Nerve, Spinal
  • Accessory Nerves
  • Accessory Nerves, Spinal
  • Cranial Nerve, Eleventh
  • Cranial Nerves, Eleventh
  • Eleventh Cranial Nerves
  • Nerve XIs
  • Nerve, Accessory
  • Nerve, Eleventh Cranial
  • Nerve, Spinal Accessory
  • Nerves, Accessory
  • Nerves, Eleventh Cranial
  • Nerves, Spinal Accessory
  • Spinal Accessory Nerves

MeSH Record

Aspects Covered

22 allowable subheadings

Indexed with the subheadings abnormalities, anatomy & histology, blood supply, chemistry, cytology, diagnostic imaging, drug effects, embryology, enzymology, growth & development, immunology, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, transplantation, ultrastructure, virology.

MeSH Record

Indexing Annotation

neoplasm = ACCESSORY NERVE DISEASES (IM) + CRANIAL NERVE NEOPLASMS (IM) + histological type of neoplasm (IM)

MeSH Hierarchy

Tree Number

MeSH Record

NLM Classification

WL 330

AMA Style

References

  1. National Library of Medicine. Accessory Nerve. Medical Subject Headings (MeSH). 2026. Unique ID D000055. http://id.nlm.nih.gov/mesh/2026/D000055
  2. Accessory Nerve. In: Wikipedia. https://en.wikipedia.org/wiki/Accessory_nerve
  3. Accessory Nerve. In: Wikidata. https://www.wikidata.org/wiki/Q271987