Lumbar splanchnic nerves

Lumbar splanchnic nerves
Details
Identifiers
Latin	nervi splanchnici lumbales
TA	A14.3.01.034
FMA	6287
*Anatomical terms of neuroanatomy* [edit on Wikidata]

The lumbar splanchnic nerves are splanchnic nerves that arise from the lumbar part of the sympathetic trunk and travel to an adjacent plexus near the aorta. They originate from L1 and L2.

These nerves contain preganglionic sympathetic and general visceral afferent fibers.

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.

External links

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

Anatomy of the autonomic nervous system

Head

Sympathetic	Ciliary ganglion: roots Sensory Sympathetic Short ciliary

Parasympathetic	Ciliary ganglion: roots Sensory Parasympathetic Short ciliary Pterygopalatine ganglion: deep petrosal nerve of pterygoid canal branches of distribution: greater palatine inferior posterior nasal branches lesser palatine nasopalatine medial superior posterior nasal branches pharyngeal Submandibular ganglion Otic ganglion

Neck

Sympathetic	paravertebral ganglia: Cervical ganglia Superior Middle Inferior Stellate ganglion prevertebral plexus: Cavernous plexus Internal carotid

Chest

Sympathetic	paravertebral ganglia: Thoracic ganglia prevertebral plexus: Cardiac plexus Esophageal plexus Pulmonary plexus Thoracic aortic plexus splanchnic nerves: cardiopulmonary thoracic cardiac nerves: Superior Middle Inferior

Abdomen

Sympathetic	paravertebral ganglia: Lumbar ganglia prevertebral ganglia: Celiac ganglia Aorticorenal Superior mesenteric ganglion Inferior mesenteric ganglion prevertebral plexus: Celiac plexus Hepatic Splenic Pancreatic aorticorenal Abdominal aortic plexus Renal/Suprarenal Superior mesenteric Gastric Inferior mesenteric Spermatic Ovarian Superior hypogastric hypogastric nerve Superior rectal Inferior hypogastric Vesical Prostatic / Cavernous nerves of penis Uterovaginal Middle rectal splanchnic nerves: Lumbar splanchnic nerves

Enteric	Submucous plexus Myenteric plexus

Pelvis

Sympathetic	paravertebral ganglia: Sacral ganglia Ganglion impar splanchnic nerves: Sacral splanchnic nerves

Parasympathetic	splanchnic nerves: Pelvic splanchnic nerves

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