The anterior tibial artery supplies blood to the structures of the anterior compartment of the leg. It arises from the popliteal artery in the popliteal fossa. The anterior tibial artery [view from the posterior compartment to be dissected later in this exercise] passes through the interosseous membrane between the tibia and fibula and enters the anterior compartment.
Retract the extensor digitorum longus muscle laterally to expose the anterior tibial artery that lies deep in the anterior compartment. The anterior tibial artery continues distally onto the dorsum of the foot as the dorsalis pedis artery . Its major branch on the dorsum of the foot, the arcuate artery, crosses the base of the metatarsal bones and gives origin to the common dorsal digital arteries. The anterior lateral and anterior medial malleolar arteries arise from the anterior tibial artery above the ankle and contribute to the collateral circulation around the ankle.
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