Muscles of Ankle & Toes Flashcards
Tibialis anterior (PM)
O: tibia
I: first metatarsal
PM for dorsiflexion; inversion
Extensor digitorum longus (PM)
O: tibia and fibula
I: phalanges 2-5
PM for toe extension; dorsiflexion
Fibularis tertius
^or peroneus
O: fibula
I: metatarsal 5
dorsiflexion and eversion
Extensor hallucis longus
O: fibula
I: great toe
extension of great toe, dorsiflexion of foot
Fibularis longus
O: fibula
I: metatarsal 1
plantar flexion and eversion
Fibularis brevis
O: fibula
I: metatarsal 5
(same as Fibularis tertius)
also plantar flexion and eversion
Gastrocnemius
triceps surae - PM
O: two heads of femur
I: calcneus via Achilles tendon
PM for plantar flexion; knee flexion (when foot is dorsiflexed)
Soleus
triceps surae - PM
O: tibia and fibula
I: also calcaneus via Achilles tendon
PM for plantar flexion; walking/running/dancing
Plantaris
O: femur
I: calcaneus via its own tendon
plantar flexion and leg flexion
Popliteus
O: femur
I: tibia
leg flexion and medial rotation
Flexor digitorum longus
O: tibia
I: phalanges 2-5
plantar flexion and inversion, toe flexion
Flexor hallucis longus
O: fibula
I: great toe
plantar flexion and inversion, toe flexion
Tibialis posterior (PM)
O: tibia and fibula
I: metatarsals 2-4
PM for foot inversion; plantar flexion
