Bassett Collection Large Image - Lane Medical Library, Stanford University Medical Center

For permissions information regarding the use of these images, please contact Drew Bourn at dbourn@stanford.edu

Shoulder

Nerve and blood supply to left trapezius muscle

The muscle has been reflected laterally from its origin. The underlying fascia remains intact.

1 .	Origins of muscle trapezius (cut across)
2 .	Superficial fascia (deep lamina of external layer)
3 .	Accessory nerve (XI)
4 .	Trapezius muscle (reflected laterally)
5 .	Acromion of scapula
6 .	Branch of superficial transverse artery to trapezius (divided)
7 .	Deltoid muscle
8 .	Lateral brachial cutaneous nerve
9 .	Intercostobrachial nerve (displaced upwards)
10 .	Teres major muscle
11 .	Triceps brachii muscle
12 .	Spinous process vertebrae C. VII
13 .	Trapezius muscle
14 .	Rhomboid major muscle
15 .	Sacrospinalis muscle (beneath lumbodorsal fascia)
16 .	Triangle of auscultation
17 .	Latissimus dorsi muscle