Iliolumbar artery

An artery with its origin in the inner branch of the abdominal aorta, with distribution to the pelvic muscles and bones, and with anastomoses to the deep circumflex iliac, obturator, and lumbar arteries.

The noun has one meaning:

Meaning #1: an artery that originates in the internal iliac artery and supplies the pelvic muscles and bones
  Synonym: arteria iliolumbalis

Artery: Iliolumbar artery
The veins of the right half of the male pelvis. (Iliolumbar artery not labeled, but Iliolumbar vein visible at center right.)
Latin	arteria iliolumbalis
Gray's	subject #155 621
Source	Internal iliac artery
Drain	iliolumbar vein

The iliolumbar artery is a branch of the posterior trunk of the internal iliac artery.

Course

The iliolumbar artery turns upward behind the obturator nerve and the external iliac artery and vein, to the medial border of the psoas major, behind which it divides into:

• Lumbar branch of iliolumbar artery
• Iliac branch of iliolumbar artery

External links

• SUNY Labs 44:10-0100
• SUNY Radiology Pelvis:15PelArt
• SUNY Figs 43:07-02
• pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (pelvicarteries)
• Illustration at mrcog-wiseowl.com

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 As such, some of the information contained herein may be outdated.

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v • d • e List of arteries of torso – abdomen (TA A12.2, GA 6.598) AA Anterior celiac left gastric esophageal branches splenic pancreatic branches (greater, dorsal) · short gastric · left gastro-omental common hepatic proper hepatic (cystic) · right gastric · gastroduodenal (right gastro-omental, superior pancreaticoduodenal, supraduodenal) SMA inferior pancreaticoduodenal · intestinal (jejunal, ileal, arcades, vasa recta)  · ileocolic (colic, anterior cecal, posterior cecal, ileal branch, appendicular)  · right colic · middle colic IMA left colic · sigmoid · superior rectal · marginal Posterior visceral middle suprarenal · renal (inferior suprarenal, ureteral) · gonadal (testicular ♂ / ovarian ♀) parietal inferior phrenic (superior suprarenal) · lumbar · median sacral terminal/ common iliac IIA Anterior umbilical superior vesical · to ductus deferens obturator anterior branch · posterior branch middle rectal vaginal branch ♀ uterine ♀ helicine · vaginal of uterine · ovarian of uterine · tubal of uterine V/IV vaginal ♀ · inferior vesical ♂ inferior gluteal accompanying of ischiadic nerve · crucial anastomosis internal pudendal inferior rectal · perineal(posterior scrotal ♂/labial ♀) · bulb of penis ♂/vestibule ♀ · urethral · deep artery of the penis ♂ (helicine)/clitoris ♀ · dorsal of the penis ♂/clitoris ♀ Posterior iliolumbar (lumbar, iliac) · lateral sacral · superior gluteal EIA inferior epigastric (cremasteric, round ligament) · deep circumflex iliac · femoral

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