superior rectal (hemorrhoidal) artery

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Origin

inferior mesenteric artery

Anastomoses

Distribution

upper part of rectum

Pathology

As a tributary of the portal vein, anastomosis with the middle or inferior rectal artery forms a portocaval anastomosis.

More general terms

References

  1. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999