Common iliac vein
Citation, DOI and article data
- location: pelvis, anterior to the sacroiliac joint
- origin and termination: union of internal and external iliac veins; into the inferior vena cava
- tributaries: iliolumbar and lateral sacral veins
- relations: common iliac arteries, lumbosacral plexus, psoas major muscle and vertebral column
It originates anterior to the sacroiliac joint, from the union of the internal and external iliac veins. The common iliac veins are valveless in most people 3, and therefore may be used as central veins for the purposes of measuring right atrial pressures.
Course and termination
It courses superiorly and obliquely to unite with the contralateral vein, forming the inferior vena cava at the level of the L5 vertebral body.
Bilaterally, the veins receive the iliolumbar and lateral sacral veins which drain the iliopsoas muscle, L4 and L5 vertebrae and the obturator vein from the medial compartment of the thigh. The left common iliac vein additionally receives the median sacral vein.
Left common iliac vein
- anteriorly: attachment of the sigmoid mesocolon, superior rectal vessels
- laterally: common iliac artery (later anteriorly, further up its course)
Right common iliac vein
- anteriorly: common iliac artery (later medially, further up its course)
- posteriorly: right obturator nerve
- the left common iliac vein occasionally receives the left renal vein
- 1. Sinnatamby CS. Last's Anatomy, Regional and Applied. Churchill Livingstone. (2011) ISBN:0702033952. Read it at Google Books - Find it at Amazon
- 2. Standring S, Gray H. Gray's anatomy, the anatomical basis of clinical practice. Churchill Livingstone. (2008) ISBN:0443066841. Read it at Google Books - Find it at Amazon
- 3. Caggiati A. The venous valves of the lower limbs. (2013) Phlebolymphology 20 (2): 87. https://www.phlebolymphology.org/the-venous-valves-of-the-lower-limbs/