Lower subscapular nerve

Lower subscapular nerve
Plan of brachial plexus (label for lower subscapular nerve at bottom center)
Details
From	Posterior cord
Innervates	Subscapularis and teres major muscle
Identifiers
Latin	Nervus subscapularis inferior
Dorlands /Elsevier	n_05/12566801
FMA	65307
*Anatomical terms of neuroanatomy* [edit on Wikidata]

The lower subscapular nerve (alternatively, inferior subscapular nerve) is a nerve that supplies the lower part of the subscapularis muscle, and also supplies the teres major muscle.

It consists of fibres from C5-6 spinal nerves. It branches from the posterior cord of the brachial plexus.

Teres major is sometimes supplied by a separate branch.

Additional images

Brachial plexus
The right brachial plexus (infraclavicular portion) in the axillary fossa; viewed from below and in front.
Brachial plexus with courses of spinal nerves shown

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

medial cord	medial pectoral 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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