Muscles of Lateral compartment of lower leg

Muscles of Lateral compartment of lower leg

Muscle	Origin	insertion	nerve	action	comment
Peroneus longus	Proximal lateral fibula	Plantar medial cuneiform, 1st metatarsal base	Superficial peroneal	Plantar flex foot(1st ray)	Test S1 motor function; runs under the foot
Peroneus brevis	Distal lateral fibula	Base of 5th metatarsal	Superficial peroneal	Evert foot	Can cause avulsion fx at base of 5th MT; has most distal muscle belly

Ref) Netter’s concise orthopaedic anatomy P317