Major Muscles of the Anterolateral Compartment of the Leg

Tibialis Anterior – Origin, Insertion, Function, and Innervation

The tibialis anterior muscle plays a crucial role in lower limb movement. It is responsible for dorsiflexion and inversion of the foot.

Origin

• Located on the lateral surface of the tibia.
• Attaches to the interosseous membrane.

Insertion

• Attaches to the medial cuneiform and first metatarsal bone.

Function

• Facilitates dorsiflexion of the foot, crucial for walking and running.
• Aids in foot inversion.

Innervation

• Supplied by the deep fibular nerve.
• Receives blood supply from the anterior tibial artery.