1
.
| Clavicle |
2
.
| Acromioclavicular ligament |
3
.
| Acromion of scapula |
4
.
| Teres minor muscle (fused with infraspinatus muscle) |
5
.
| Posterior circumflex artery of humerus |
6
.
| Muscular branch axillary nerve (to teres minor muscle) |
7
.
| Triceps brachii muscle (lateral head) |
8
.
| Circumflex artery and vein of scapula |
9
.
| Triceps brachii muscle (long head) |
10
.
| Teres major muscle |
11
.
| Upper pointer: Long thoracic nerve Lower pointer: Serratus anterior muscle |
12
.
| Levator muscle of scapula |
13
.
| Supraspinatus |
14
.
| Branch superficial cervical artery |
15
.
| Spine of scapula |
16
.
| Remnant of tendon of insertion of trapezius muscle |
17
.
| Vertebral margin of scapula |
18
.
| Infraspinatus muscle |
19
.
| Rhomboid major muscle (cut off) |