Bassett Collection of Stereoscopic Images of Human Anatomy

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Dissection of anterior aspect of vertebral column

Thoracic region.

Image #220-5

KEYWORDS: Thoracic region, Vertebral column.

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Dissection of anterior aspect of vertebral column

Thoracic region.

The specimen shown in the previous view has been turned to expose its left anterolateral aspect in this close-up view of the lower thoracic and upper lumbar part of the spine.

1 .	Accessory hemiazygos vein
2 .	Azygos vein
3 .	Upper pointer: Body of vertebra Th. VIII (pointer on anterior longitudinal ligament) Lower pointer: Intervertebral disc Th. VII-IX
4 .	Vein draining body of vertebra
5 .	Posterior intercostal arteries IX and X
6 .	Greater splanchnic nerve (lower pointer on splanchnic ganglion)
7 .	Lesser splanchnic nerve
8 .	Least splanchnic it
9 .	Diaphragm (cut off)
10 .	Lumbar part of diaphragm (upper pointer: left crus; lower pointer: right crus)
11 .	Left pointer: Hemiazygos vein Right pointer: Posterior intercostal vein VIII
12 .	Rib VIII
13 .	Costal pleura
14 .	Sympathetic trunk (lower pointer on ganglion of sympathetic trunk)
15 .	Rami communicantes
16 .	Intercostal nerve XI
17 .	Head of rib XII
18 .	Subcostal nerve (note large ramus communicans)
19 .	Upper pointer: Quadratus lumborum muscle Lower pointer: Psoas major muscle
20 .	Ascending lumbar vein
21 .	Transverse process of vertebra L. II
22 .	Lumbar nerve I (passing downward to join lumbar plexus)