Superior rectal artery (Arteria rectalis superior)
Educational content only — not medical advice.
Anatomy
The direct continuation of the inferior mesenteric artery, descending into the pelvis in the mesorectum to bifurcate and supply the upper two-thirds of the rectum.
Clinical notes
Key vascular pedicle mobilized in total mesorectal excision (TME) for rectal cancer; terminal branches feed the internal hemorrhoidal venous plexus.
Related structures
Educational references
FAQ
What is the role of the Superior rectal artery?
The direct continuation of the inferior mesenteric artery, descending into the pelvis in the mesorectum to bifurcate and supply the upper two-thirds of the rectum.
Why is the Superior rectal artery clinically important?
Key vascular pedicle mobilized in total mesorectal excision (TME) for rectal cancer; terminal branches feed the internal hemorrhoidal venous plexus.
Source & license
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