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Bassett Collection of Stereoscopic Images of Human Anatomy


Quadrangular and triangular spaces, close-up view

Image #93-7

KEYWORDS: Shoulder, Vasculature.

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These images are licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

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Higher resolution images are available for a fee. Contact Drew Bourn, PhD, MLIS.

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