Shoulder

Cavity of left shoulder joint, posterior view

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Image #94-7

Shoulder

Cavity of left shoulder joint, posterior view

The articular capsule has been incised vertically and the humerus retracted laterally. The head of the humerus has been rotated posteriorly.

1. Acromion of scapula (cut)
2. Joint capsule of humerus (cut edge turned inward)
3. Glenoid labrum
4. Biceps brachii muscle (long head)
5. Position of superior glenohumeral ligament (covered internally by articular capsule)
6. Supraspinatus muscle (tendon fused with joint capsule)
7. Head of humerus
8. Tendon of subscapularis muscle (opening of bursa subscapularis visible)
9. Middle glenohumeral ligament (covered internally by articular capsule)
10. Anatomic neck of humerus
11. Inferior glenohumeral ligament (covered internally by articular capsule)
12. Joint capsule of humerus
13. Teres minor muscle
14. Joint capsule of humerus (reinforced by inferior glenohumeral ligament)
15. Body of humerus
16. Spinoglenoid notch
17. Neck of scapula
18. Glenoid cavity
19. Infraspinatus muscle
20. Triceps brachii muscle (long head)
21. Posterior circumflex artery of humerus