Superior rectal artery
|Artery: Superior rectal artery|
|Sigmoid colon and rectum, showing distribution of branches of inferior mesenteric artery and their anastomoses. (Superior hemorrhoidal artery visible at center right.)|
|The bloodvessels of the rectum and anus, showing the distribution and anastomosis on the posterior surface near the termination of the gut. (Labeled as hemorrhoidal artery.)|
|Latin||arteria rectalis superior|
|Gray's||subject #154 610|
|Source||inferior mesenteric artery|
|Vein||superior rectal vein|
The superior rectal artery is the continuation of the inferior mesenteric artery. It descends into the pelvis between the layers of the mesentery of the sigmoid colon, crossing the left common iliac artery and vein.
These pierce the muscular coat of the bowel and run downward, as straight vessels, placed at regular intervals from each other in the wall of the gut between its muscular and mucous coats, to the level of the internal anal sphincter; here they form a series of loops around the lower end of the rectum, and communicate with the middle rectal artery (from the internal iliac artery) and with the inferior rectal artery (from the internal pudendal artery).
- SUNY Figs 39:02-06 - "Branches of the inferior mesenteric artery."
- SUNY Labs 39:05-0112 - "Intestines and Pancreas: Branches of the Inferior Mesenteric Artery"
- Norman/Georgetown sup&infmesentericart
- Norman/Georgetown pelvis (pelvicarteries)
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
Arteries of torso - abdomen
(superior vesical, to ductus deferens) – inferior vesical – middle rectal – uterine (azygos of the vagina) – vaginal – obturator (anterior branch, posterior branch) – internal pudendal (inferior rectal, perineal, artery of the urethral bulb, urethral, deep artery of the penis, dorsal artery of the penis) – inferior gluteal (accompanying of ischiadic nerve, crucial anastomosis)
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