Thoracic sympathetic trunk
- Branches of sympathetic trunk to thoracic plexuses
- Greater splanchnic nerve formed by preganglionic fibers from T5~T9 ganglia, and relay in celiac ganglion.
- Lesser splanchnic nerve formed by preganglionic fibers from T10~T12 ganglia, and relay in aorticorenal ganglion.
- The postganglionic fibers supply the liver, spleen, kidney and alimentary tract as far as the left colic flexure.
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