From Posterior cord Dorlands
/Elsevier n_05/12566801 | Innervates Subscapularis FMA 65304 | |
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Latin Nervus subscapularis superior | ||
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.
References
Upper subscapular nerve Wikipedia(Text) CC BY-SA