Superior rectal artery
Name = PAGENAME
Latin = arteria rectalis superior
GraySubject = 154
GrayPage = 610
Sigmoid colonand rectum, showing distribution of branches of inferior mesenteric arteryand their anastomoses. (Superior hemorrhoidal artery visible at center right.)
Caption2 = The bloodvessels of the
rectumand anus, showing the distribution and anastomosis on the posterior surface near the termination of the gut. (Labeled as hemorrhoidal artery.)
inferior mesenteric artery
superior rectal vein
DorlandsPre = a_61
DorlandsSuf = 12155681
The superior rectal artery (superior hemorrhoidal artery) is an artery that descends into the
pelvisto supply blood to the rectum.
The superior rectal artery is the continuation of the
inferior mesenteric artery. It descends into the pelvisbetween the layers of the mesenteryof the sigmoid colon, crossing the left common iliac arteryand vein.
It divides, opposite the third
sacral vertebrainto two branches, which descend one on either side of the rectum. About 10 or 12 cm from the anus, these branches break up into several small branches.
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).
Middle rectal artery
Inferior rectal artery
* - "Branches of the inferior mesenteric artery."
* - "Intestines and Pancreas: Branches of the Inferior Mesenteric Artery"
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Look at other dictionaries:
superior rectal artery — n RECTAL ARTERY (c) … Medical dictionary
Superior mesenteric artery — Artery: Superior mesenteric artery Frontal view of the superior mesenteric artery and its branches. The large vessel (blue) beside the SMA is the superior mesenteric vein. A considerable number of different branching patterns exist … Wikipedia
superior hemorrhoidal artery — n RECTAL ARTERY (c) … Medical dictionary
rectal artery — n any of three arteries supplying esp. the rectum: a) one arising from the internal pudendal artery and supplying the lower part of the rectum and the perineal region called also inferior hemorrhoidal artery, inferior rectal artery b) one arising … Medical dictionary
Superior rectal vein — Infobox Vein Name = PAGENAME Latin = vena rectalis superior GraySubject = 174 GrayPage = 681 Caption = The bloodvessels of the rectum and anus, showing the distribution and anastomosis on the posterior surface near the termination of the gut.… … Wikipedia
rectal artery superior — arteria rectalis superior … Medical dictionary
Middle rectal artery — Artery: Middle rectal artery The blood vessels of the rectum and anus, showing the distribution and anastomosis on the posterior surface near the termination of the gut. (Labeled as hemorrhoidal artery.) … Wikipedia
Inferior rectal artery — Infobox Artery Name = PAGENAME Latin = arteria rectalis inferior, arteria hæmorrhoidalis inferior GraySubject = 155 GrayPage = 619 Caption = The inferior rectal arteries(unlabeled) surround the anus. Caption2 = The bloodvessels of the rectum and… … Wikipedia
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