Brachial Plexus (also known as Plexus, Brachial): 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 segmen

NIH MeSH · D001917Anatomy

Brachial Plexus

Also known asPlexus, Brachial

Definition

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 classification

  • A08.800.800.720.050

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Common questions about Brachial Plexus

What does Brachial Plexus mean in medicine?
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. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Brachial Plexus known by any other names?
Yes. Brachial Plexus is also referred to as Plexus, Brachial in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Brachial Plexus sit in the medical classification?
Brachial Plexus falls under the broader medical category "Anatomy" in the MeSH hierarchy (tree numbers: A08.800.800.720.050). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Brachial Plexus?
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Source: NIH MeSH 2026 (D001917) — National Library of Medicine, public domain. View official MeSH record ↗