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Inferior Rectal Plexus
Nervous System

Inferior Rectal Plexus

Plexus rectalis inferior

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Description

The inferior rectal plexus is a collection of autonomic nerves that pass in the perivascular plexus around the internal pudendal artery and branches of the inferior rectal artery. It forms a dense network around the anal canal and the external anal sphincter. In addition, some nerves may transit along the pudendal and inferior anal nerves. These nerves carry predominantly somatic, voluntary impulses to these structures. Whether the plexus contains only autonomic nerves or includes voluntary nerves is unclear.

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) The myenteric plexus consists of ganglia located between the circular and longitudinal muscle layers.

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