Ankle / Foot Muscles Flashcards
Tibialis Anterior
O: Proximal lateral tibia and interosseous membrane
I: First cuneiform and first metatarsal
A: Ankle dorsiflexion
N: Deep Fibular nerve (L4, L5, S1)
Tibialis Anterior
Extensor Hallucis longus
O: Proximal anterior fibula and interosseous membrane
I: Dorsum of the base of the distal phalanx of great toe
A: Extends first toe IP and MTP joints; ankle dorsiflexion inversion
N: Deep Fibular Nerve
Extensor Hallucis longus
Extensor Digitorum Longus
O: Proximal anterior fibula, interosseous membrane, anterior lateral condyle of tibia
I: Dorsum of distal phalanx of four lesser toes
A: Extends the MTP and IP joints of the four lesser toes, ankle dorsiflexion
N: Deep fibular nerve
Extensor Digitorum Longus
Fibularis tertius
O: Distal medial fibula and interosseous membrane
I: Dorsal surface of tuberosity on base of fifth metatarsal
A: Ankle Dorsiflexion; eversion
N: Deep fibular nerve
Fibularis tertius
Fibularis Longus
O: Head of fibula and interosseous membrane
I: Plantar surface of first cuneiform and metatarsal
A: Ankle eversion ; plantar flexion
N: Superficial fibular nerve
Fibularis Longus
Fibularis Brevis
O: Middle lateral fibula
I: Lateral surface of tuberosity on base of fifth metatarsal
A: Ankle eversion ; plantar flexion
N: Superficial fibular nerve (L4, L5, S1)
Fibularis Brevis
Tibialis Posterior
O: Interosseous membrane; adjacent tibia; and fibula
I: Navicular and most tarsals and metatarsals
A: Ankle inversion; plantar flexion
N: Tibial Nerve (L5, S1)
Tibialis Posterior
Flexor Hallucis Longus
O: Posterior fibula and interosseous membrane
I: Plantar surface on base of distal phalanx of the great toe
A: Flexes great toe, ankle inversion and plantar flexion
N: Tibial Never (L5, S1, S2)
Flexor Hallucis Longus
Flexor Digitorum Longus
O: Posterior tibia
I: Distal phalanx of four lesser toes
A: Flexes MTP and IP joints of the four lesser toes, ankle inversion, and plantar flexion
N: Tibial Nerve
Flexor Digitorum Longus
