Upper trunk
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| Upper trunk | |
|---|---|
| Details | |
| From | Ventral rami of C5 and C6 |
| To | Anterior division of upper trunk, posterior division of upper trunk, subclavian nerve, suprascapular nerve |
| Identifiers | |
| Latin | truncus superior plexus brachialis |
| TA98 | Lua error in Module:Wikidata at line 746: attempt to index field 'wikibase' (a nil value). |
| TH | {{#property:P1694}} |
| TE | {{#property:P1693}} |
| FMA | {{#property:P1402}} |
| Anatomical terms of neuroanatomy [[[d:Lua error in Module:Wikidata at line 865: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]] | |
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:
- subclavian nerve (C5-C6)
- suprascapular nerve (C5-C6)
- anterior division of upper trunk (C5-C6, forms part of lateral cord)
- posterior division of upper trunk (C5-C6, forms part of posterior cord)
The axillary, radial, musculocutaneous and median nerves all contain axons derived from the upper trunk.
Additional images
[edit | edit source]-
Brachial plexus. Deep dissection. -
Brachial plexus. Deep dissection. Anterolateral view
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