Tibialis Anterior Muscle - Origins & Function - Human Anatomy | Kenhub

Hey, everyone! It’s Matt from Kenhub. And in this tutorial, we will discuss the tibialis

anterior muscle.

The tibialis anterior muscle is a lower leg muscle that lies anteriorly as the name suggests

and is part of a group of extensor muscles.

This muscle runs mediocaudally from the lateral tibia… the interosseous membrane… and

crural fascia.

At the height of the lower tibia, it merges into a tendon which is led by both extensor

retinacula of the foot and finally inserts at the plantar side of the medial cuneiform…

and the first metatarsal bone.

The tibialis anterior muscle serves as the leading muscle for the neurovascular pathway

running towards the ankle, which includes the deep fibular nerve and the anterior tibial

artery and vein.

The main task of the anterior muscles of the lower leg is the dorsal extension of the upper

ankle joint.

Additionally, the tibialis anterior muscle causes a weak inversion, also known as supination.

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