Jump to content

Upper trunk

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by LR0725 (talk | contribs) at 14:24, 25 June 2022. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Upper trunk
Details
Fromventral rami of C5 and C6
Toanterior division of upper trunk, posterior division of upper trunk, subclavian nerve, suprascapular nerve
Identifiers
Latintruncus superior plexus brachialis
TA98A14.2.03.004
TA26398
FMA65216
Anatomical terms of neuroanatomy

The upper (superior) trunk is part of the brachial plexus. It is formed by joining of the ventral rami of the fifth (C5) and sixth (C6) cervical nerves. The upper trunk divides into an anterior and posterior division.

The branches of the upper trunk from proximal to distal are:

The axillary, radial, musculocutaneous and median nerves all contain axons derived from the upper trunk.

Additional images