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Inferior Anorectal Veins
Cardiovascular System

Inferior Anorectal Veins

Venae anorectales inferiores

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Quick Facts

Origin: Anorectal venous plexus.

Course: Travels through the ischioanal fossa to drain into the internal pudendal vein.

Tributaries: Rectal venous plexus.

Drainage: Lower third of the rectum and anal canal.

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Origin

The inferior anorectal vein is formed in the rectal venous plexus surrounding the anal canal and rectum.

Course

The vein travel through the ischioanal fossa to drain into the systemic venous circulation, via the internal pudendal veins, at the posterior end of the pudendal canal.

Tributaries

The inferior anorectal vein receives tributaries from the anorectal venous plexus. It also forms anastomoses with the middle and superior anorectal veins via the anorectal venous plexus.

Structures Drained

The inferior anorectal vein drains the mucosa and muscular layers of the lower third of the rectum and anal canal.

List of Clinical Correlates

- Lower gastrointestinal bleeding

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Complete Anatomy

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