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
Vein	iliolumbar vein
Identifiers
Latin	Arteria iliolumbalis
TA	A12.2.15.002
FMA	18845
Anatomical terminology [edit on Wikidata]

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

Structure

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

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.^[1]

Additional Images

• 
  Iliolumbar artery

References

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

1. 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