Inferior rectal artery

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 anus, showing the distribution and anastomosis on the posterior surface near the termination of the gut. (Labeled as hemorrhoidal artery.)
BranchFrom = internal pudendal artery
BranchTo =
Vein = Inferior rectal veins
Supplies = anal canal
MeshName =
MeshNumber =
DorlandsPre = a_61
DorlandsSuf = 12155662
The inferior rectal artery (inferior hemorrhoidal artery) is an artery that supplies blood to the lower half of the anal canal.

tructure

The inferior rectal artery arises from the internal pudendal artery as it passes above the ischial tuberosity.

Piercing the wall of the pudendal canal, it divides into two or three branches which cross the ischioanal fossa, and are distributed to the muscles and integument of the anal region, and send offshoots around the lower edge of the gluteus maximus to the skin of the buttock.

They anastomose with the corresponding vessels of the opposite side, with the superior and middle rectal arteries, and with the perineal artery.

ee also

* Superior rectal artery
* Middle rectal artery
* Inferior rectal nerve


=Additional

External links

* - "Inferior view of female perineum, branches of the internal pudendal artery."
* - "Branches of internal pudendal artery in the male perineum."
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* (NormanAnatomyFig|analtriangle3)
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Look at other dictionaries:

  • inferior rectal artery — n RECTAL ARTERY (a) …   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

  • Inferior mesenteric artery — Artery: Inferior mesenteric artery Sigmoid colon and rectum, showing distribution of branches of inferior mesenteric artery and their anastomoses. (Inferior mesenteric artery labeled at center.) …   Wikipedia

  • inferior hemorrhoidal artery — n RECTAL ARTERY (a) …   Medical dictionary

  • Inferior rectal veins — Infobox Vein Name = PAGENAME Latin = venae rectales inferiores GraySubject = 173 GrayPage = 676 Caption = Scheme of the anastomosis of the veins of the rectum Caption2 = DrainsFrom = rectum DrainsTo = internal pudendal vein Artery = inferior… …   Wikipedia

  • 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 vesical artery — Infobox Artery Name = Inferior vesical artery Latin = arteria vesicalis inferior GraySubject = 155 GrayPage = 615 Caption = The arteries of the pelvis. Caption2 = Same picture, showing the source of inferior vesical artery, the internal iliac… …   Wikipedia

  • Superior rectal artery — Infobox Artery Name = PAGENAME Latin = arteria rectalis superior GraySubject = 154 GrayPage = 610 Caption = Sigmoid colon and rectum, showing distribution of branches of inferior mesenteric artery and their anastomoses. (Superior hemorrhoidal… …   Wikipedia

  • rectal artery inferior — arteria rectalis inferior …   Medical dictionary

  • Inferior hemorrhoidal — can refer to: * Inferior anal nerves * Inferior rectal artery …   Wikipedia

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