Iliolumbar artery

Updated on Dec 14, 2024

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Source Internal iliac artery Latin Arteria iliolumbalis FMA 18845		Vein iliolumbar vein TA A12.2.15.002

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.

References

Iliolumbar artery Wikipedia

(Text) CC BY-SA

Contents

Structure

Anastomoses

References