Anterior tibialis muscle
Anterior tibialis muscle, m. Tibialis anterior, long, narrow, lies superficially, occupying the most medial position of all the muscles of this group. The inner edge of the muscle borders on the anterior edge of the tibia , while the outer edge of the proximal part is m. Extensor digitorum longus, in the distal - c m. Extensor hallucis longus. The muscle originates from the lateral condyle and lateral surface of the bone and the interosseous membrane of the lower leg. In the lower third of the shin it passes into a long flat tendon, which lies in the tendon channel under retinaculum mm. Extensorum inferius and is directed first to the medial edge of the foot , and then to the plantar surface. Here the tendon is attached to the medial sphenoid bone and the base of the I metatarsal bone. At the attachment site, you can observe a small podsuhozhilnuyu bag anterior tibialis muscle, bursa subtendinea m. Tibialis anterioris.
Function: unbends the foot, lifting its medial edge.
Innervation: n. Peroneus profundus (LIV -SI).
Blood supply: a. Tibialis anterior.
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