The lumbar splanchnic nerves are splanchnic nerves that arise from the lumbar ganglia (the lumbar part of the sympathetic trunk) ^[1] and travel to an adjacent plexus near the aorta. They originate from L1 and L2.^{[ citation needed]} Together with fibres from the aortic plexus, they form the superior hypogastric plexus. ^[1]

These nerves contain preganglionic sympathetic and general visceral afferent fibers.^{[ citation needed]}

The site of synapse is found in the inferior mesenteric ganglion and the postsynaptic fibers innervate the smooth muscle and glands of the pelvic viscera and hindgut.^{[ citation needed]}

References

External links

• figures/chapter_32/32-6.HTM: Basic Human Anatomy at Dartmouth Medical School

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