The<unk>  is a band of fascia which separates the lateral compartment of leg.
The fascia cruris gives off from its deep surface, on the lateral side of the leg, two strong intermuscular septa, the<unk>  and posterior peroneal septa, which enclose the Peronæi longus and brevis, and separate them from the muscles of the<unk>  and posterior<unk>  regions, and several more slender processes which enclose the individual muscles in each region.
Anterior crural intermuscular septum
Transverse intermuscular septum
Tunica externa 
Interatrial septum
Chordae tendineae
Tunica intima
Interventricular septum
Cutis verticis gyrata