From Wikipedia, the free encyclopedia
The middle rectal artery is an artery in the pelvis that supplies blood to the rectum.
[edit] Structure
The middle rectal artery usually arises with the inferior vesical artery, a branch of the internal iliac artery. It is distributed to the rectum, anastomosing with the inferior vesical artery, superior rectal artery, and inferior rectal artery.
In males, the middle rectal artery may give off branches to the prostate and the seminal vesicles, while in females it gives off branches to the vagina.
[edit] Additional images
Sigmoid colon and rectum, showing distribution of branches of inferior mesenteric artery and their anastomoses. |
[edit] See also
[edit] External links
| Arteries of thorax, abdomen, and pelvis edit
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pulmonary - aorta - ascending aorta
right coronary (sinuatrial nodal, atrioventricular nodal, atrial, right marginal, posterior interventricular)
left coronary (anterior interventricular, left circumflex, left marginal)
aortic arch - brachiocephalic - thyreoidea ima - common carotid | (Gray's s141-Gray's s143)
DESCENDING AORTA / THORACIC AORTA: bronchial - esophageal - posterior intercostal - subcostal | (Gray's s153)
ABDOMINAL AORTA: Anterior - celiac: left gastric
splenic: pancreatic branches (arteria pancreatica magna) - short gastric - left gastro-omental
common hepatic: proper hepatic (cystic), right gastric, gastroduodenal (right gastro-omental, superior pancreaticoduodenal)
superior mesenteric: inferior pancreaticoduodenal - intestinal - ileocolic (appendicular) - right colic - middle colic
inferior mesenteric: left colic - sigmoid - superior rectal
Posterior - Visceral: middle suprarenal - renal (inferior suprarenal) - testicular/ovarian - Parietal: inferior phrenic (superior suprarenal) - lumbar - median sacral
Terminal branches: common iliac - marginal - internal iliac | (Gray's s154)
INTERNAL ILIAC: Anterior: umbilical (superior vesical, to ductus deferens) - inferior vesical - middle rectal - uterine (azygos of the vagina) - vaginal - obturator
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)
Posterior: iliolumbar - lateral sacral - superior gluteal | (Gray's s155)
EXTERNAL ILIAC: inferior epigastric (cremasteric) - deep circumflex iliac | (Gray's s156)
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