Anatomy

Musculocutaneous Nerve

A major nerve of the upper extremity. The fibers of the musculocutaneous nerve originate in the lower cervical spinal cord (usually C5 to C7), travel via the lateral cord of the brachial plexus, and supply sensory and motor innervation to the upper arm, elbow, and forearm.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A major nerve of the upper extremity. The fibers of the musculocutaneous nerve originate in the lower cervical spinal cord (usually C5 to C7), travel via the lateral cord of the brachial plexus, and supply sensory and motor innervation to the upper arm, elbow, and forearm.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

3 entry terms
  • Musculocutaneous Nerves
  • Nerve, Musculocutaneous
  • Nerves, Musculocutaneous

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: coord IM with PERIPHERAL NERVOUS SYSTEM DISEASES (IM); neopl: coord IM with PERIPHERAL NERVE NEOPLASMS (IM) + histol type of neopl

MeSH Hierarchy

Tree Number

  1. A08w.800w.800w.720w.050w.540w

AMA Style

References

  1. National Library of Medicine. Musculocutaneous Nerve. Medical Subject Headings (MeSH). 2026. Unique ID D009138. http://id.nlm.nih.gov/mesh/2026/D009138
  2. Musculocutaneous Nerve. In: Wikipedia. https://en.wikipedia.org/wiki/Musculocutaneous_nerve
  3. Musculocutaneous Nerve. In: Wikidata. https://www.wikidata.org/wiki/Q1758126