Anatomy

Brachial Plexus

The large network of nerve fibers which distributes the innervation of the upper extremity. The brachial plexus extends from the neck into the axilla. In humans, the nerves of the plexus usually originate from the lower cervical and the first thoracic spinal cord segments (C5-C8 and T1), but variations are not uncommon.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The large network of nerve fibers which distributes the innervation of the upper extremity. The brachial plexus extends from the neck into the axilla. In humans, the nerves of the plexus usually originate from the lower cervical and the first thoracic spinal cord segments (C5-C8 and T1), but variations are not uncommon.

MeSH Record

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Synonyms

1 entry terms
  • Plexus, Brachial

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, injuries, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, ultrastructure, virology.

MeSH Record

Indexing Annotation

dis = BRACHIAL PLEXUS NEUROPATHIES; inflammation = BRACHIAL PLEXUS NEURITIS

MeSH Hierarchy

Tree Number

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

MeSH Record

NLM Classification

WL 400

AMA Style

References

  1. National Library of Medicine. Brachial Plexus. Medical Subject Headings (MeSH). 2026. Unique ID D001917. http://id.nlm.nih.gov/mesh/2026/D001917
  2. Brachial Plexus. In: Wikipedia. https://en.wikipedia.org/wiki/Brachial_plexus
  3. Brachial Plexus. In: Wikidata. https://www.wikidata.org/wiki/Q846961