Anatomy

Ulnar Nerve

A major nerve of the upper extremity. In humans, the fibers of the ulnar nerve originate in the lower cervical and upper thoracic spinal cord (usually C7 to T1), travel via the medial cord of the brachial plexus, and supply sensory and motor innervation to parts of the hand and forearm.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A major nerve of the upper extremity. In humans, the fibers of the ulnar nerve originate in the lower cervical and upper thoracic spinal cord (usually C7 to T1), travel via the medial cord of the brachial plexus, and supply sensory and motor innervation to parts of the hand and forearm.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

3 entry terms
  • Nerve, Ulnar
  • Nerves, Ulnar
  • Ulnar Nerves

MeSH Record

Aspects Covered

23 allowable subheadings

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

MeSH Record

Indexing Annotation

dis = ULNAR NEUROPATHY; neopl = ULNAR NEUROPATHY (IM) + PERIPHERAL NERVOUS SYSTEM NEOPLASMS (IM) + histol type of neopl (IM)

MeSH Hierarchy

Tree Number

  1. A08w.800w.800w.720w.050w.850w

AMA Style

References

  1. National Library of Medicine. Ulnar Nerve. Medical Subject Headings (MeSH). 2026. Unique ID D014459. http://id.nlm.nih.gov/mesh/2026/D014459
  2. Ulnar Nerve. In: Wikipedia. https://en.wikipedia.org/wiki/Ulnar_nerve
  3. Ulnar Nerve. In: Wikidata. https://www.wikidata.org/wiki/Q254580