Iliac vein

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In human anatomy, iliac vein refers to several anatomical structures located in the pelvis:

  • Common iliac vein, formed by the external and internal iliac veins, drains into the inferior vena cava
  • Deep circumflex iliac vein, formed by the union of the venae comitantes of the deep iliac circumflex artery, and joins the external iliac vein
  • External iliac vein, terminates at the common iliac vein, drains the femoral vein
  • Internal iliac vein, terminates at the common iliac vein, drains pelvic organs and perineum
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Veins of the abdomen and pelvis
To azygos system
  • ascending lumbar
    • subcostal
IVC
(Systemic)
To IVC or left renal vein
Common iliac
Unpaired
Internal iliac
posterior:
anterior:
External iliac
Portal vein
(Portal)
Splenic
Superior mesenteric
Direct