When the artery crosses the extensor retinaculum, it changes its name to dorsalis pedis artery. The nerve contains axons from the L4, L5, and S1 spinal nerves.īlood for the compartment is supplied by the anterior tibial artery, which runs between the tibialis anterior and extensor digitorum longus muscles. The anterior compartment of the leg is supplied by the deep fibular nerve (deep peroneal nerve), a branch of the common fibular nerve.

The compartment contains muscles that are dorsiflexors and participate in inversion and eversion of the foot. In this article, we shall look at the anatomy of the muscles in the lateral compartment of the leg their attachments, innervation and actions. They are both innervated by the superficial fibular nerve. The common function of the muscles is eversion turning the sole of the foot outwards. Inferior third of anterior surface of fibula and interosseous membraneĭorsiflexes ankle and aids in eversion of foot There are two muscles in the lateral compartment of the leg the fibularis longus and brevis (also known as peroneal longus and brevis). Middle and distal phalanges of lateral four digitsĮxtends lateral four digits and dorsiflexes ankle There are four muscles in the anterior compartment of the leg: tibialis anterior, extensor digitorum longus, extensor hallucis longus and fibularis tertius. The lateral compartment of the leg is the smallest one, containing only two muscles: fibularis/peroneal longus and brevis. Lateral condyle of tibia and superior three quarters of medial surface of fibula and interosseous membrane Middle part of anterior surface of fibula and interosseous membraneĭorsal aspect of base of distal phalanx of great toe (hallux) Medial and inferior surfaces of medial cuneiform and base of 1st metatarsal

The extensor digitorum longus lies lateral and deep to the tibialis anterior. The tibialis anterior muscle is located alongside the lateral surface of the tibia. The muscles of the flexor compartment of the thigh flex which. The septa are formed from the fascia which is made up of a strong type of connective tissue. 1 Each compartment contains connective tissue, nerves and blood vessels. Lateral condyle and superior half of lateral surface of tibia and interosseous membrane Muscles in the Anterior Compartment of the Leg Tibialis Anterior. All parts of the lumbo-sacral plexus, excluding its terminal branches, are in the pelvis. The lower leg is divided into four compartments by the interosseous membrane of the leg, the anterior intermuscular septum, the transverse intermuscular septum and the posterior intermuscular septum.

Compartments of leg innervation