Bassett Collection Large Image - Lane Medical Library, Stanford University Medical Center

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Shoulder

Nerve and blood supply to supraspinatus and infraspinatus muscles

The muscles have been detached from their origins and reflected laterally.

1 .	Supraspinatus muscle (reflected)
2 .	Acromion of scapula
3 .	Infraspinatus muscle (reflected)
4 .	Radial nerve (in background)
5 .	Brachial artery (in background)
6 .	Transverse scapular artery (cut off and displaced superiorly from normal position)
7 .	Upper pointer: Coracoid process of scapula Lower pointer: Superior transverse ligament of scapula
8 .	Medial angle of scapula
9 .	Suprascapular nerve
10 .	Supraspinatus fossa
11 .	Spine of scapula
12 .	Infraspinatus fossa
13 .	Circumflex scapular artery
14 .	Area of origin of teres major muscle