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Fibularis longus
Other Terms:
Peroneus longus,
Musculus fibularis longus,
Musculus peroneus longus,
Muscle long fibulaire
Muscle parts
None
Latin name
Musculus fibularis longus or Musculus peroneus longus
Latin muscle parts
None
Group
Crural muscle – lateral compartment
Etymology
The English name for this muscle is the long muscle of the pointed bone. The word peroneus is from the Greek perone meaning “anything sharp or pointed.” This was an alternate term for the fibula, which is a Latin word designating a “buckle or brooch.” It arises from the Latin word figo meaning “to fasten.” In some animals the bone is short and pointed at its distal end where it abuts the tibia. This appearance resembled a needle to its brooch. Longus is the Latin term meaning “long.” This is being used as a comparative reference to a shorter muscle that does the same thing.
Origin
Lateral surface of the head and the proximal 2/3rds of the fibula.
Insertion
Lateral side of the base of the first metatarsal bone, lateral side of the base of the medial cuneiform, and the inferior base of the second metatarsal bone
Action
Plantar flexion of the ankle joint; eversion of the foot; helps maintain the longitudinal and transverse arches of the foot.
Nerve supply
Superficial peroneal nerve (L5 and S1)
Blood supply
From proximal to distal, the belly of the muscle is supplied by the inferior lateral genicular artery, the anterior tibial artery, anterior tibial recurrent artery, posterior tibial recurrent artery, circumflex fibular artery, muscular branches from the fibular (peroneal) artery. The tendon is supplied by the anterior lateral malleolar artery, lateral calcaneal artery, lateral tarsal artery, lateral plantar artery, and the medial plantar artery.
Latin
Musculus fibularis longus
Latin
Musculus peroneus longus
French
Muscle long fibulaire
