Anterior compartment of the leg - Muscles, vessels & nerves | Anatomy Tutorial

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The Tibialis anterior muscle lies against the lateral surface of the tibia.
Originates from the upper 2/3 of the lateral surface of the tibia and the adjacent interossous membrane.
Its insertion is on the medial cuneiform and the base of first metatarsal bone.
The extensor halucis longus muscle originates from the middle portion of fibula on the medial surface and the anjoining interosseous membrane. Its insertion is on the dorsal side of the base of the distal phalanx of the big toe.
The extensor digitorum longus muscle originates from the lateral condyle of tibia, anterior surface of fibula and adjoining interosseous membrane in its upper part. Its insertion is on the bases of middle and distal phalanges of the lateral four toes by four tendons.
The last muscle to be indicated is the peroneus tertius. This muscle originates on the distal anterior surface of the fibula and the adjacent interossous membrane. Its tendon inserts on the dorsal surface of the base of 5th metatarsal bone.
All the four muscles from the anterior compartment of the leg are supplied by the anterior tibial artery.

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