Iliolumbar artery

Iliolumbar artery
Iliolumbar artery
	The veins of the right half of the male pelvis. (Iliolumbar artery not labeled, but Iliolumbar vein visible at center right.)
Details
Source	Internal iliac artery
Branches	Lumbar branches of iliolumbar artery
Vein	Iliolumbar vein
Supplies	Lumbar vertebrae, ilium
Identifiers
Latin	arteria iliolumbalis
TA98	A12.2.15.002
TA2	4304
FMA	18845
	Anatomical terminology [ edit on Wikidata]

Last updated May 24, 2025

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

Structure

The iliolumbar artery is the first branch of the posterior trunk of the internal iliac artery.^[1] It turns upward behind the obturator nerve and the external iliac artery and vein, to the medial border of the psoas major muscle, behind which it divides into:

Lumbar branch of iliolumbar artery

Iliac branch of iliolumbar artery

Anastomoses

1. Last lumbar→iliolumbar
2. Lateral sacral↔lateral sacral
3. Middle sacral→lateral sacral
4. Superior hemorrhoidal→middle hemorrhoidal
5. Medial femoral circumflex→inferior gluteal
6. Medial femoral circumflex↔obturator
7. Lateral femoral circumflex→superior gluteal
8. Deep iliac circumflex→superior gluteal
9. Deep iliac circumflex→external iliac
10. Last lumbar→superior gluteal
11. Last lumbar→deep iliac circumflex
12. Iliolumbar→deep iliac circumflex.^[2]

Additional images

Iliolumbar artery

References

This article incorporates text in the public domain from page 621 of the 20th edition of Gray's Anatomy (1918)

↑ Paterson-Brown, Sara (2010-01-01), Bennett, Phillip; Williamson, Catherine (eds.), "Chapter Five - Applied anatomy" , Basic Science in Obstetrics and Gynaecology (Fourth Edition), Churchill Livingstone, pp. 57–95, doi:10.1016/b978-0-443-10281-3.00009-9, ISBN 978-0-443-10281-3 , retrieved 2021-02-07
↑ Chait, A; Moltz, A; Nelson, JH (February 1968). "The collateral arterial circulation in the pelvis. An angiographic study". American Journal of Roentgenology. 102 (2): 392–400. doi:10.2214/ajr.102.2.392. PMID 5635691.

External links

Anatomy photo:44:10-0100 at the SUNY Downstate Medical Center
Radiology image: Pelvis:15PelArt from Radiology Atlas at SUNY Downstate Medical Center (need to enable Java)
Anatomy figure: 43:07-02 at Human Anatomy Online, SUNY Downstate Medical Center
pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) ( pelvicarteries )
Illustration at mrcog-wiseowl.com

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[1] Paterson-Brown, Sara (2010-01-01), Bennett, Phillip; Williamson, Catherine (eds.), "Chapter Five - Applied anatomy" , Basic Science in Obstetrics and Gynaecology (Fourth Edition), Churchill Livingstone, pp. 57–95, doi:10.1016/b978-0-443-10281-3.00009-9, ISBN 978-0-443-10281-3 , retrieved 2021-02-07

[Chait-2] Chait, A; Moltz, A; Nelson, JH (February 1968). "The collateral arterial circulation in the pelvis. An angiographic study". American Journal of Roentgenology. 102 (2): 392–400. doi:10.2214/ajr.102.2.392. PMID 5635691.

[1]

[2]