Fibularis longus muscle

Origin: Lateral condyle of the tibia, the fibular collateral ligament of the femorotibial joint, and the proximal end of the fibula.

Insertion: Fourth tarsal and on the plantar surfaces of all of the metatarsals.

Action: Rotation of the hind paw medially so that the plantar surface faces laterally; flexion of the tarsus.

Nerve: Peroneus