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In an intercostal space, clean and identify a posterior intercostal vein, and artery, and intercostal nerve [cross-section]. (Remember the mnemonic VAN to recall the orientation of these structures.)Clean and identify the right and left sympathetic trunks [two probes], which course along the vertebral bodies near the heads of the ribs.
Identify the sympathetic (paravertebral) ganglia [cross-section ], which appears as periodic thickenings along the trunk
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