Shoulder

Nerve and blood supply to supraspinatus and infraspinatus muscles

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Image #94-2

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