lateral compartment of leg lateral compartment of leg the lateral compartment of the leg is a fascial compartment of the lower leg. it contains muscles which make eversion and plantarflexion of the foot. lateral compartment of legdiagram of leg compartmentsdissection video of lateral compartment of leg (1 min 9 sec)detailsarteryfibular arterynervesuperficial fibular nerveidentifierslatincompartimentum cruris lateraleta98a04.7.01.009ta22651fma45185anatomical terminology muscles the lateral compartment of the leg contains: fibularis longus fibularis brevis imagemuscleorigininsertioninnervationmain action fibularis longushead and superior two thirds of lateral surface of fibulabase of 1st metatarsal and medial cuneiformsuperficial fibular nerve (l5, s1, s2)everts foot and weakly plantarflexes ankle fibularis brevisinferior two thirds of lateral surface of fibuladorsal surface of tuberosity on lateral side of base of 5th metatarsal action foot evertors foot plantarflexion nerve supply the lateral compartment of the leg is supplied by the superficial fibular nerve (superficial peroneal nerve). blood supply its proximal and distal arterial supply consists of perforating branches of the anterior tibial artery and fibular artery. additional images animation. fibularis longus (blue) and fibularis brevis (red).