Term Name:	fibularis tertius
Synonyms:	fibularis tertius, fibularis tertius muscle, peronaeus tertius, peroneus digit V, peroneus digiti minimi, peroneus digiti quinti, peroneus tertius, peroneus tertius muscle
Definition:	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. It is innervated by the deep fibular nerve. Its action is that of weak dorsiflexion of the ankle joint and to evert the foot at the ankle joint.
Ontology:	Uberon Ontology [UBERON:0010524]