Anterior Leg Flashcards
Tibialis Anterior
Insertion
Medial and inferior surfaces of medial cuneiform and base of 1st metatarsal
Tibialis Anterior
Origin
Lateral condyle and superior 2/3 of lateral surface of tibia and interosseous membrane
Tibialis Anterior
Innervation
Deep fibular nerve
L4,L5
Tibialis Anterior
Actions
Dorsiflexes ankle; inverts foot; supports medial longitudinal arch of foot
Extensor Hallucis Longus
Origin
Middle part of anterior surface of fibula and interosseous membrane
Extensor Hallucis Longus
Insertion
Dorsal aspect of base of distal phalanx of great toe
Extensor Hallucis Longus
Innervation
Deep fibular nerve L5, S1
Extensor Hallucis Longus
Actions
Extends great toe; dorsiflexes ankle
Extensor Digitorum Longus
Origin
Lateral condyle of tibia and superior 2/3 of anterior surface of fibula and interosseous membrane
Extensor Digitorum Longus
Insertion
Middle and distal phalanges of lateral four digits
Extensor Digitorum Longus
Innervation
Deep fibular nerve
L5, S1
Extensor Digitorum Longus
Actions
Extends lateral four digits; dorsiflexes ankle i
Fibularis Tertius
Origin
Inferior third of anterior surface of fibula and interosseous membrane
Fibularis Tertius
Insertion
Dorsum of base of 5th metatarsal
Fibularis Tertius
Innervation
Deep fibular nerve
L5, S1
Fibularis Tertius
Actions
dorsiflexes ankle; aids in eversion of foot