Cardiovascular System
Posterior Trunk of Internal Iliac Vein
Truncus posterior venae iliacae internae
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The posterior trunk of the anterior iliac vein closely follows the path of the corresponding artery and provides venous drainage to the gluteal region and pelvis.
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Internal Iliac Vein
The internal iliac vein is formed by the confluence of the obturator, branches of the internal pudendal, and gluteal veins, which originate in the thigh, perineum, and buttock respectively.
