inferior rectal (hemorrhoidal) artery

Origin

internal pudendal artery

Anastomoses

• middle rectal artery
• perineal artery
• gluteal artery
• superior rectal artery*

* The superior rectal artery is a tributary of the portal vein. The middle & inferior rectal arteries drain into the inferior vena caval system. The anastomoses between the superior & middle or inferior rectal arteries form a portocaval anastomosis.

Distribution

• anal canal
• muscles & skin of anal region
• skin of buttocks

More general terms

• artery