Shoulder

Quadrangular and triangular spaces, close-up view

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Image #93-7
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Shoulder
Quadrangular and triangular spaces, close-up view
1 . Teres minor muscle (fused with infraspinatus muscle)
2 . Upper pointer: Branch axillary nerve (to deltoid muscle, previously removed) Lower pointer: Quadrangular space
3 . Muscular branch axillary nerve (to teres minor muscle)
4 . Posterior circumflex artery of humerus (cut off)
5 . Lateral brachial cutaneous (cut off)
6 . Triceps brachii (lateral head)
7 . Triceps brachii muscle (long head)
8 . Infraspinatus
9 . Circumflex artery of scapula
10 . Triangular space
11 . Teres major muscle
12 . Serratus anterior muscle