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Plantaris
Other Terms:
Musculus plantaris,
Muscle plantaire
Muscle parts
None
Latin name
Musculus plantaris
Latin muscle parts
None
Group
Crural muscle – posterior compartment – superficial group
Etymology
This muscle’s name in English is the sole of the foot muscle. The word plantaris is from the Latin planta for “the sole of the foot,” which comes from the Greek plata meaning “flat.”
Origin
Distal aspect of the lateral supracondylar line and the oblique popliteal ligament.
Insertion
Posterior surface of the calcaneus
Action
Assists with plantar flexion of the ankle joint and flexion of the knee.
Nerve supply
Tibial nerve (S1 and S2)
Blood supply
From proximal to distal, the belly of the muscle is supplied by the sural branches of the popliteal artery, the posterior tibial artery, and the peroneal artery. The tendon receives a blood supply from the anterior and posterior, medial and lateral malleolar arteries, the calcanean branches of the posterior tibial artery, peroneal artery, and the lateral plantar artery.
Latin
Musculus plantaris
French
Muscle plantaire
