Dissection of thorax from a posterior approach

Superficial structures of upper part of back; external layer of muscles

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Image #130-7
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Dissection of thorax from a posterior approach
Superficial structures of upper part of back; external layer of muscles
On the left side of the specimen the skin has been cut away and the tela subcutanea has been dissected to expose cutaneous nerves and vessels. On the right side of the skin, tela subcutanea and fascia have been removed to display muscles related to the shoulder girdle.
1 . Nuchal fascia
2 . Medial cutaneous branch of dorsal branch thoracic nerve III
3 . Intercostobrachial nerve
4 . Triangle of auscultation
5 . Fascia covering latissimus dorsi muscle
6 . Lateral cutaneous branch intercostal nerve V (posterior branch)
7 . Spinous process of vertebra C. VII
8 . Trapezius muscle
9 . Spine of scapula
10 . Acromion
11 . Infraspinatus fascia
12 . Deltoid muscle
13 . Triceps brachii muscle
14 . Teres major muscle
15 . Latissimus dorsi muscle