Peroneus tertius

Origin	Distal anterior surface of the fibula
Insertion	Dorsal surface of metatarsal 5
Action(s)	Dorsiflexion and eversion of the foot
Nerve Supply	Deep fibular nerve
Arterial Supply	Anterior tibial artery
Physical Exam	Enter physical examination maneuvers for muscle
Clinical Importance	Enter clinical importance of muscle
Disease States	Enter links to pages where muscle involved
Discussion	The peroneus tertius (also known as fibularis tertius) is a muscle of the human body located in the lower limb. The muscle arises from the lower third of the anterior surface of the fibula; from the lower part of the interosseous membrane; and from an intermuscular septum between it and the peroneus brevis. The tendon, after passing under the superior extensor retinaculum of foot and inferior extensor retinaculum of foot in the same canal as the extensor digitorum longus, is inserted into the dorsal surface of the base of the metatarsal bone of the 5th digit.