From Wikipedia, the free encyclopedia
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]
