The internal iliac vein empties blood directly into the ________.

Question

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The internal iliac vein is a branch of the common iliac vein, which eventually merges with the external iliac vein to form the inferior vena cava. Therefore, the blood from the internal iliac vein empties into the common iliac vein, not directly into the external iliac vein or femoral vein. The superior vena cava drains blood from the upper body, while the hepatic portal vein receives blood from the digestive system.

The Internal Iliac Vein Empties Blood Directly into the ________