Anterior compartment leg muscles

The video tutorial covers the anterior compartment muscles of the leg, focusing on the tibialis anterior, extensor hallucis longus, and extensor digitorum longus. It explains their origins, insertions, and functions, particularly in dorsiflexion and toe extension. The tutorial also introduces the brevis muscles and their innervation by the deep peroneal nerve. A review highlights common features of these muscles, such as their role in dorsiflexion and shared innervation.

What is the primary function of the tibialis anterior muscle?

• Extension of the hip

• Flexion of the knee

• Dorsiflexion of the foot

• Plantar flexion of the foot

Which muscle is responsible for extending the big toe?

• Extensor digitorum longus

• Tibialis anterior

• Extensor hallucis longus

• Flexor hallucis longus

Where does the extensor digitorum longus muscle originate?

• Only from the fibula

• From the tibia, fibula, and interosseous membrane

• Only from the tibia

• From the calcaneus

What nerve innervates the extensor hallucis brevis and extensor digitorum brevis muscles?

• Deep peroneal nerve

• Tibial nerve

• Sural nerve

• Superficial peroneal nerve

What common action do the anterior compartment muscles of the leg share?

• Eversion of the foot

• Dorsiflexion

• Inversion of the foot

• Plantar flexion