KNOWLATIVE

Muscle

Flexor Hallucis Longus

Origin Lower two-thirds of posterior surface of shaft of fibula, posterior intermuscular septum, interosseous membrane Insertion Base of distal phalanx of great toe Actions Flexes distal phalanx of...

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Abductor Hallucis

Origin Tuberosity of calcaneus, flexor retinaculum, plantar aponeurosis Insertion Medial side of base of proximal phalanx of great toe Actions Stabilizes great toe (with adductor hallucis) Nerve...

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Extensor Digitorum Brevis – Foot

Origin Anterior and lateral surfaces of calcaneus, lateral talocalcaneal ligament, inferior extensor retinaculum Insertion Into lateral sides of tendons of extensor digitorum longus of second,...

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Extensor Hallucis Brevis

Origin Anterior and lateral surfaces of calcaneus, lateral talocalcaneal ligament, inferior extensor retinaculum next to extensor digitorum brevis tendon Insertion Into base of proximal phalanx of...

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Peroneus Brevis (Fibularis Brevis)

Origin Lower two-thirds of lateral surface of fibula Insertion Lateral side of base of fifth metatarsal bone Actions Everts, plantar flexes foot Nerve Superficial peroneal nerve (L5, S1, S2) Note

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Plantaris

Origin Lateral supracondylar ridge of femur, oblique popliteal ligament Insertion Posterior surface of the calcaneus Actions Plantar flexes foot, flexes leg Nerve Tibial nerve (S1, S2) Note This...

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Peroneus Longus (Fibularis Longus)

Origin Upper two-thirds of lateral surface of fibula Insertion Lateral side of medial cuneiform, base of first metatarsal Actions Plantar flexes, everts foot Nerve Superficial peroneal nerve (L4,...

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Triceps Surae

OriginInsertionActionsNerveNote The triceps surae is a muscle located at the calf. It is composed by the two-headed Gastrocnemius and the Soleus.  These muscles both insert into the calcaneus and...

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Flexor Digitorum Longus – Foot

Origin Medial part of posterior surface of tibia. Insertion Bases of distal phalanges of second, third, fourth, and fifth toes. Actions Flexes distal phalanges of lateral four toes, assists in...

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Articularis Genu

OriginThe inferior part of the anterior face of femur.InsertionOn the supra-patellar part of the synovial membrane of the knee.ActionsIt elevates the capsule and the synovial membrane of the knee...

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Extensor Digitorum Longus – Foot

Origin Upper two-thirds of anterior surface of fibula, interosseous membrane, lateral condyle of tibia. Insertion Along dorsal surface of proximal phalanges of four lateral toes, and then to bases...

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Extensor Hallucis Longus

Origin Middle half of anterior surface of fibula and interosseous membrane. Insertion Base of distal phalanx of great toe. Actions Extends, hyperextends great toe, dorsiflexes and inverts...

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Semimembranosus

OriginIschial tuberosityInsertionMedial surface of shaft of tibiaActionsFlexes and slightly medially rotates leg; after flexion, extends thighNerveTibial portion of sciatic nerve (L5, S1,...

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Semitendinosus

OriginIschial tuberosityInsertionMedial surface of shaft of tibiaActionsFlexes and slightly medially rotates leg; after flexion, extends thighNerveTibial portion of sciatic nerve (L5, S1,...

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Biceps Femoris

Origin Long head—ischial tuberosity, sacrotuberous ligament Short head—linea aspera, lateral supracondylar ridge, lateral intermuscular septum InsertionLateral side of head of fibula and lateral...

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