Question #444

Muscles that insert into the medial cuneiform bone of the foot:

1. Tibialis anterior
2. Tibialis posterior
3. Fibularis longus

Tibialis anterior arises from the anterior tibia and passes anterior to the medial malleolus before inserting into the medial cuneiform. It therefore dorsiflexes and inverts the foot.

Tibialis posterior arises from the posterior tibia and passes posterior to the medial malleolus before forming a small slip that inserts into the medial cuneiform. It therefore plantarflexes and inverts the foot.

Fibularis longus arises from the fibula and passes posterior to the lateral malleolus before taking an oblique course across the sole of the inferior surface of the foot and subsequently inserting into the medial cuneiform. It therefore plantarflexes and everts the foot and is the antagonist of tibialis anterior.

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