Anatomy origin-insertion-action

• the fibularis brevis originates at the middle lateral fibula, inserts at the 5th metatarsal and its action is plantar flexion and eversion
• the fibularis longus originates at the head of the fibula, inserts at the bottom of the medial cuneiform and its action is plantar flexion and eversion
• the tibialis posterior originates on the posterior tibia, inserts at the navicular tuberosity, medial cuneiform, and metatarsals 2-4, and its action is plantar flexion and inversion