Upper subscapular nerve

Upper subscapular nerve
Plan of brachial plexus. (Label for upper subscapular nerve at bottom center.)
Details
From	Posterior cord
Innervates	Subscapularis
Identifiers
Latin	Nervus subscapularis superior
FMA	65304
*Anatomical terms of neuroanatomy* [edit on Wikidata]

The upper subscapular (short subscapular, superior subscapular) enters the upper part of the Subscapularis muscle, and is frequently represented by two branches. It is derived from C5, C6 nerve fibers, and branches from the posterior cord of the brachial plexus. It innervates the superior portion of the subscapularis muscle.

Additional images

Brachial plexus
The right brachial plexus (infraclavicular portion) in the axillary fossa; viewed from below and in front.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

Nerves of the brachial plexus

Supraclavicular

root (dorsal scapular, long thoracic)
upper trunk (suprascapular, to the subclavius)

Infraclavicular

lateral cord	lateral pectoral ansa pectoralis musculocutaneous (lateral cutaneous of forearm) median/lateral root: anterior interosseous palmar recurrent common palmar digital (proper palmar digital)

medial cord	medial pectoral ansa pectoralis cutaneous: medial cutaneous of forearm medial cutaneous of arm ulnar: muscular palmar dorsal (dorsal digital nerves) superficial (common palmar digital, proper palmar digital) deep median/medial root: see above

posterior cord	subscapular (upper, lower) thoracodorsal axillary (superior lateral cutaneous of arm) radial: muscular cutaneous (posterior of arm, inferior lateral of arm, posterior of forearm) superficial (dorsal digital nerves) deep (posterior interosseous)

Other

cutaneous innervation of the upper limbs

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