Ankle, Foot, and Toes OP Exam

Only muscles (action, origin, insertion)

Gastrocnemius

Action - plantarflexion

Origin - lateral and medial femoral condyles

Insertion - calcaneus via achilles tendon

Soleus

Action - plantarflexion

Origin - tibial plateau

Insertion - calcaneus via achilles tendon

Tibialis Posterior

Action - plantarflexion and inversion

Origin - upper two thirds of fibula

Insertion - navicular tuberosity

Tibialis Anterior

Action - dorsiflexion

Origin - lateral tibial condyle

Insertion - 1st cuneiform and 1st metatarsal

Peroneus Longus

Action - pronation and plantarflexion

Origin - fibular head

Insertion - 1st metatarsal

Peroneus Brevis

Action - pronation and plantarflexion

Origin - distal two thirds of fibula

Insertion - 5th metatarsal

Peroneus Tertius

Action - pronation and assist in dorsiflexion

Origin - distal one third of fibula (anterior)

Insertion - base of 5th metatarsal

Flexor Digitorum Longus

Action - flex digits

Origin - distal two thirds of tibia (posterior and medial)

Insertion - plantar base of distal 2-5 digits

Flexor Hallucis Longus

Action - flex big toe

Origin - distal two thirds of fibula (posterior)

Insertion - plantar surface of proximal phalanx of 1st digit

Extensor Digitorum Longus

Action - extends digits

Origin - lateral tibial condyle (anterior)

Insertion - via tendons to distal phalanges of 2-5 digits

Extensor Hallucis Longus

Action - extends big toe

Origin - middle two thirds of fibula (anterior)

Insertion - dorsal base of phalanx of 1st digit