Prevertebral ganglia

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Prevertebral ganglia
Abdominal portion of the sympathetic trunk, with the celiac plexus and hypogastric plexus.
Latin	'
Gray's	subject #214 977
System
MeSH	[1]
The celiac ganglia with the sympathetic plexuses of the abdominal viscera radiating from the ganglia.

Prevertebral ganglia (or collateral ganglia, or preaortic ganglia) are sympathetic ganglia which lie between the sympathetic chain and the organ of supply.

Function

They are composed of postganglionic sympathetic principal neurons that supply abdominal and pelvic viscera. Unlike paravertebral ganglia that are composed almost exclusively of relay neurons receiving nervous information arising only from preganglionic neurons in the spinal cord, prevertebral ganglia contain a majority of integrating neurons that receive nervous information arising from preganglionic neurons in the spinal cord and intestinofugal neurons of the myenteric plexus in the gastrointestinal tract. The targets of these integrating neurons are mainly neurons of the enteric nervous system.

Examples

These include

1. the celiac ganglia (which can include the aorticorenal ganglion),

2. superior mesenteric ganglia, and

3. inferior mesenteric ganglia.

See also

• Autonomic ganglion
• prevertebral plexus

Additional images

Sympathetic (red) and parasympathetic (blue) nervous system

External links

• Dictionary at eMedicine prevertebral+ganglia
• Physiology at MCG 6/6ch2/s6ch2_30

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