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Middle Anorectal Artery
Cardiovascular System

Middle Anorectal Artery

Arteria anorectalis media

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Quick Facts

Origin: Anterior division of the internal iliac artery.

Course: Travels medially towards the rectum.

Branches: Prostate (males) or vaginal branches (females).

Supplied Structures: Rectum, prostate (males), or vagina (females).

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The left and right middle anorectal artery originates from the anterior division of the internal iliac artery.


The middle anorectal artery travels anterolaterally in the mesorectum.


The middle anorectal arteries give off several branches that pierce the walls of the rectum. In males, a prostate branch is given off, while the corresponding structure in females is the vaginal branch.

Supplied Structures

The middle anorectal arteries aid in the vascular supply for the middle one third of the rectum. In males, the middle anorectal artery contributes to the vasculature of the prostate via a prostate branch. In females, the equivalent structure, the vaginal branch, contributes to the vasculature supply of the vagina.

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Arteries are vessels transporting blood between heart, tissues, and other organs in order to supply them with nutrition and oxygen.

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