Arterial supply of the lower limb
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The arterial supply of the lower limbs originates from the external iliac artery.
The common femoral artery is the direct continuation of the external iliac artery, beginning at the level of the inguinal ligament. The common femoral artery becomes the superficial femoral artery at the point where it gives off the profunda femoris.
The tibioperoneal trunk divides into the posterior tibial and peroneal arteries. The posterior tibial artery passes downwards and behind the medial malleolus. It divides into medial and lateral plantar arteries. The peroneal (fibular artery) descends in the deep part of the posterior compartment, just medial to the fibula, supplying a perforating branch to the lateral and anterior compartments.