Great Saphenous Vein

The great saphenous vein, which is the longest vein in the body, begins on the medial side of the foot. It rises to extend up along the inner side of the leg and penetrates deep into the thigh just below the inguinal ligament in the lower abdomen, where it joins the femoral vein. Near its distant end, it receives vessels that drain the upper thigh, groin, and lower abdominal wall. The femoral and the great saphenous veins merge into the external iliac vein.

 

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