1 — Calcaneal tuberosity; 2 — Flexor retinaculum; 3 — Tendinous sheath of flexor digitorum longus; 4 — Subtendinous bursa of tibialis anterior; 5 — Tendinous sheath of extensor hallucis longus; 6 — Tendinous sheath of tibialis anterior; 7 — Inferior extensor retinaculum; 8 — Subcutaneous bursa of medial malleolus; 9 — Tendinous sheath of flexor hallucis longus; 10 — Tendinous sheath of tibialis posterior; 11 — Superior extensor retinaculum; 12 — Calcaneal tendon
