Uberon definition : The iliolumbar vein is the vena comitans of the iliolumbar artery. The obturator nerve
crosses superficial to it. A single vein is found more commonly than a double vein.
It drains vertebral segments four and five. It is closely related to the ascending
lumbar vein. [WP,unvetted].;
The iliolumbar vein is the vena comitans of the iliolumbar artery. The obturator nerve
crosses superficial to it. A single vein is found more commonly than a double vein.
It drains vertebral segments four and five. It is closely related to the ascending
lumbar vein. [WP,unvetted].