Compartimentum cruris anterius

Synonyms: extensor (of the lower leg), anterior compartment of the lower leg, compartimentum cruris extensorum
German: Compartimentum cruris anterius

1 Definition

Compartimentum cruris anterius or extensor of the leg refers to a compartment (technical) which hosts the extensor muscles on the lower leg.

2 Anatomy

The extensor is bound by the following structures:

• anterior: fascia cruris (lower leg facies)
• posterior: membrana interossea cruris
• medial: tibia (shin bone)
• lateral: septum intermusculare cruris anterius

It includes the following muscles:

• musculus tibialis anterior (anterior tibial muscle)
• musculus extensor digitorum longus
• musculus extensor hallucis longus
• musculus peroneus tertius

It includes the following pathways:

• anterior tibial artery and vena tibialis anterior
• nervus fibularis profundus