The posterior tibial artery gives the following branches in the foot:

Lateral plantar artery
Medial plantar artery
Medial malleolar branches
Calcaneal branches

The peroneal (fibular) artery arises from the posterior tibial artery at the superior part of the cruropopliteal canal. It passes laterally, descends via the inferior musculoperoneal canal and then divides into terminal branches called the calcaneal branches. On its course, the peroneal artery gives off several side branches: muscular branches to the lateral muscle group of the lower leg; the fibular nutrient artery that supplies the fibula; the perforating branch and the malleolar lateral branches, both forming the lateral malleolar network. The peroneal artery supplies the lateral muscle group of the lower leg, the fibula, as well as the malleolar region.

The circumflex fibular artery is another branch of the posterior tibial artery that ascends to the popliteal fossa, curves around the head of the fibula and participates in forming the patellar network. This artery contributes to supplying the knee joint and the muscles around it.

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Branches of the posterior tibial artery