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Dissection of thoracic and lumbosacral regions of back from a posterior approach

Superficial structures and external muscles of thoracic region of back

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Image #212-2
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Dissection of thoracic and lumbosacral regions of back from a posterior approach
Superficial structures and external muscles of thoracic region of back
On the lower half of the specimen the tela subcutanea has been dissected to expose cutaneous nerves and vessels. To the right of the midline the trapezius and latissimus dorsi muscles have been exposed.
1 . Cervical surface of superficial fascia (nuchal fascia)
2 . Medial dorsal cutaneous 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 vertebra C. VII
8 . Trapezius muscle
9 . Spine of scapula
10 . Acromion
11 . Fascia infraspinata
12 . Deltoid muscle
13 . Triceps brachii muscle
14 . Teres major muscle
15 . Latissimus dorsi muscle