Tibialis Anterior

Musculus tibialis anterior

Lower Body LegsCalvesAnterior Chain

The tibialis anterior is the main muscle of the anterior shin compartment, dorsiflexing the ankle and inverting the foot. It is crucial for clearing the foot during the swing phase of gait and for deceleration; weakness causes foot drop. Strengthening it (tib raises, toe walks) improves ankle balance and helps prevent shin splints.

Actions

Ankle dorsiflexion, Foot inversion

Origin

Lateral condyle and upper two-thirds of the lateral surface of the tibia, and the interosseous membrane

Insertion

Medial and inferior surfaces of the medial cuneiform and the base of the first metatarsal

Innervation

Deep fibular (deep peroneal) nerve (L4, L5)

Blood supply

Anterior tibial artery

Wikipedia ↗

shinlegsdorsiflexionanterior-chaininversion