Inferior rectal artery

Infobox Artery
Name = PAGENAME
Latin = arteria rectalis inferior, arteria hæmorrhoidalis inferior
GraySubject = 155
GrayPage = 619

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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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