Anatomy

Radial Nerve

A major nerve of the upper extremity. In humans the fibers of the radial nerve originate in the lower cervical and upper thoracic spinal cord (usually C5 to T1), travel via the posterior cord of the brachial plexus, and supply motor innervation to extensor muscles of the arm and cutaneous sensory fibers to extensor regions of the arm and hand.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A major nerve of the upper extremity. In humans the fibers of the radial nerve originate in the lower cervical and upper thoracic spinal cord (usually C5 to T1), travel via the posterior cord of the brachial plexus, and supply motor innervation to extensor muscles of the arm and cutaneous sensory fibers to extensor regions of the arm and hand.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

3 entry terms
  • Nerve, Radial
  • Nerves, Radial
  • Radial 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 = RADIAL NEUROPATHY; neopl = RADIAL NEUROPATHY (IM) + PERIPHERAL NERVE NEOPLASMS (IM) + histol type of neopl (IM)

MeSH Hierarchy

Tree Number

  1. A08w.800w.800w.720w.050w.700w

AMA Style

References

  1. National Library of Medicine. Radial Nerve. Medical Subject Headings (MeSH). 2026. Unique ID D011826. http://id.nlm.nih.gov/mesh/2026/D011826
  2. Radial Nerve. In: Wikipedia. https://en.wikipedia.org/wiki/Radial_nerve
  3. Radial Nerve. In: Wikidata. https://www.wikidata.org/wiki/Q1365325