Anterior Leg Compartment Flashcards
Insertion of tibialis anterior
Medial and inferior surfaces of medial cuneiform and base of 1st metatarsal
Origin of tibialis anterior
Lateral condyle and superior 2/3 of lateral surface of tibia and interosseous membrane
Innervation of tibialis anterior
Deep fibular nerve (L4 and L5)
Action of tibialis anterior
Dorsiflexes ankle, inverts foot, supports medial longitudinal arch of foot
Origin of extensor hallucis longus
Middle part of anterior surface of fibula and interosseous membrane
Insertion of extensor hallucis longus
Dorsal aspect of base of distal phalanx of great toe
Innervation of extensor hallucis longus
Deep fibular L5 and S1
Origin of extensor digitorum longus
Lateral condyle of tibia and superior 2/3 of anterior surface of fibula and interosseous membrane
Insertion of extensor digitorum longus
Middle and distal phalanges of lateral four digits
Innervation of extensor digitorum longus
Deep fibular L5 and S 1
Action of extensor digitorum longus
Extends lateral four digits, dorsiflexes ankle
Origin of fibularis tertius
Inferior third of anterior surface of fibula and interosseous membrand
Insertion of fibularis tertius
Dorsum of base of 5th metatarsal
Innervation of fibularis tertius
Deep fibular nerve L5 and S1
Action of fibularis tertius
Dorsiflexes ankle, aids in eversion of foot
Origin of fibularis longus
Head and superior two thirds of lateral surface of fibula
Insertion of fibularis longus
Base of 1st metatarsal and medial cuneiform
Innervation of fibularis longus
Superficial fibular nerve L5-S2
Action of fibularis longus
Evert foot, weakly plantar flexes ankle, supports traverse arch of foot
Origin of fibularis brevis
Middle part of lateral surface of fibula
Insertion of fibularis brevis
Dorsal surface of tuberosity of base of 5th metatarsal
Innervation of fibularis brevis
Supericial fibular nerve L5-S2
Action of fibularis brevis
Evert foot, weakly plantarflex ankle
