Module 2 - Nerves, Vessels and Lymphatic Drainage: Page 6 of 7
In general, pelvic and perineal veins accompany their corresponding arteries and share similar names and courses. Most veins in this region ultimately drain into the common iliac veins, which converge to form the inferior vena cava.
Add the right and left common iliac vein. These veins continue from the femoral veins as they pass deep to the inguinal ligament, receiving drainage from the lower limb and lower abdominal wall.
Add the right and left external iliac vein. These veins continue from the femoral veins as they pass deep to the inguinal ligament, receiving drainage from the lower limb and lower abdominal wall.
Add the femoral vein. Trace its course through the femoral triangle, as it ascends to become the external iliac vein.
Add the right and left internal iliac vein.
Add the remainder of the internal iliac venous plexus.
Clinical Note: The venous plexuses in this region are valveless, allowing for bidirectional flow and potential routes for metastatic spread (e.g., from prostate or rectal cancers to the vertebral venous system via Batson’s plexus).
