Third peroneal muscle

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third peroneal muscle --> peroneus tertius

(Science: anatomy, muscle) origin, in common with musculus extensor digitorum longus; insertion, dorsum of base of fifth metatarsal bone; nerve supply, deep branch of peroneal; action, assists in dorsiflexion and eversion of foot.

Synonym: musculus fibularis tertius, musculus peroneus tertius, third peroneal muscle.