CELIAC GANGLION

 

DESCRIPTION: This is the component part of the celiac plexus for two celiac ganglia make up the celiac plexus. The ganglion is arranged in two divisions- the upper is the celiac ganglion proper while the lower is called the aorticorenal ganglion. The right ganglion is placed behind the inferior vena cava and the left is behind the splenic vessels. It receives all the branches entering the celiac plexus except that the lesser and least splanchnic nerves enter the aorticorenal ganglion while the greater splanchnic nerve enter the upper ganglion, which is the celiac ganglion proper.

It is formed, just as for celiac plexus,  by the following

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Celiac prolongation of hepatic branch of anterior vagus

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Celiac branch of posterior vagus

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Greater splanchnic nerve (sympathetic-T5-T9

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Lesser splanchnic nerve (T10-11)

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Least splanchnic nerve (T12)

BRANCHES:

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Branches interconnect with each other or run into subsidiary plexuses of the celiac plexus.

FUNCTIONAL COMPONENTS:

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GVA sympathetic fibers with cell bodies in T5-T12 spinal ganglia.

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GVE sympathetic fibers from T5-T12 ventral part of intermediolateral horn, mostly running in the greater splanchnic nerve, lesser splanchnic nerve and least splanchnic nerve.

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GVE parasympathetic fibers from dorsal nucleus of vagus.

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GVE parasympathetic fibers from the inferior salivatory nucleus.

ROOT: Dorsal nucleus of vagus, inferior salivatory nucleus, all of the upper medulla in the vagal trigone of rhomboid fossa and T5-T12 spinal cord segments.

 

Electronic School of Medicine
Creator: Oluwole Ogunranti


 

 

 

 

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Electronic School of Medicine
Creator: Oluwole Ogunranti