![](http://lane.stanford.edu/elane/public/L254573/medium/TD.B.0131.007.L.jpg)
Bassett Collection of Stereoscopic Images of Human Anatomy
Dissection of thorax from a posterior approach
Intercostal nerves, vessels and muscles; costal pleura; thoracic aorta
Image #131-7
KEYWORDS: Bones joints cartilage, Fascia and connective tissue, Muscles and tendons, Peripheral nervous system, Pleura, Rib cage, Vasculature, Vertebral column.
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Dissection of thorax from a posterior approach
Intercostal nerves, vessels and muscles; costal pleura; thoracic aorta
Ribs and vertebral bodies have been resected bilaterally between the second and the ninth thoracic segments. The periosteum (6) which covered the inner surfaces of the ribs have been preserved in most areas. The anterior longitudinal ligament (23), with remnants of the intervertebral discs attached, has also been retained in part. The lungs have been inflated and are visible through the intact costal pleura. The proximal parts of the III-VII spinal nerves have been positioned on the pleura in such a way that their dorsal and ventral roots, dorsal rami and communications with the sympathetic trunks are visible. These components are labeled for the left seventh thoracic nerve (8, 9, 10). The intercostal arteries and veins have been cut off in various ways.
- Rib II
- Intercostal nerve II
- Sympathetic trunk
- Costal pleura
- Rib III (cut off)
- Periosteum of sixth rib
- Thoracic aorta
- Left pointer: Intercostal nerve VII Right pointer: Ramus communicans
- Dorsal branch thoracic nerve VII
- Left pointer: Spinal ganglion and dorsal root Right pointer: Ventral root
- Innermost intercostal muscle
- Levator costarum brevis muscle
- Internal intercostal membrane
- External intercostal muscle
- Transverse process vertebra Th. II
- Inferior articular process
- Posterior longitudinal ligament
- Intervertebral disc Th. II-III
- Veins of third intervertebral foramen (bones removed)
- Ligamentous band extending from vertebrae to thoracic aorta
- Anulus fibrosus vertebra Th. V- VI
- Posterior intercostal artery and vein VI
- Anterior longitudinal ligament
- Ligamentum capitis costae radiatum (preserved with periosteum of rib)
- Spinal cord
- Rib IX