Iliolumbar_artery

Iliolumbar artery

Iliolumbar artery

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

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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:

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


References

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

  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
  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.



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