The femoral vein is the largest vein in the inner thighs where the leg muscles join the lower abdomen. It returns deoxygenated blood from the leg to the heart via the iliac veins. This vein is part of the femoral triangle. The femoral triangle includes the femoral vein, femoral artery and femoral nerve.
The femoral artery is the primary artery for providing oxygenated blood to the tissues of the leg, which are found in the lower limb region of the body. These arteries pass through the deep tissues of the leg parallel to the femur.