Lumbar splanchnic nerves

Lumbar splanchnic nerves
Details
Identifiers
Latin	nervi splanchnici lumbales
Dorlands /Elsevier	n_05/12566685
TA	A14.3.01.034
FMA	6287
*Anatomical terms of neuroanatomy*

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	Cervical Chain Ganglion: roots long ciliary Deep Petrosal
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 plexus:
Celiac plexus

aorticorenal
- Abdominal aortic plexus
- Renal/Suprarenal
Superior mesenteric
- Gastric
Inferior mesenteric
- Spermatic
- Ovarian
Superior hypogastric
- hypogastric nerve
- Superior rectal
Inferior hypogastric

splanchnic nerves: Lumbar splanchnic nerves

Enteric

Pelvis

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

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