Updated: 1/2/2022

Tibialis anterior

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  • Summary
      • Tibialis anterior
      • Origin
      • Lateral condyle of tibia, proximal 1/2 - 2/3 or lateral surface of tibial shaft, interosseous membrane, and the deep surface of the fascia cruris
      • Insertion
      • Medial and plantar surfaces of 1st cuneiform and base of first metatarsal
      • Action
      • 1. Dorsiflexes ankle and inverts the hindfoot
      • 2. Dorsiflexes foot in preparation for heel strike (late swing phase)
      • 3. Eccentrically contracts after heel strike
      • Innervation
      • Deep peroneal nerve (L4, L5)
      • Arterial Supply
      • Anterior tibial artery

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