Flexor digitorum longus

Proximal Attachment: Medial part of posterior surface of tibia inferior to soleal line; by a broad tendon to fibula

Distal Attachment: Bases of distal phalanges of lateral four digits

Innervation: Tibial nerve (S₂, S₃)

Main Action(s): Flexes lateral four digits; plantarflexes ankle; supports longitudinal arches of foot