extensors of the ankle and toes Flashcards
tibilialis anterior
O: lateral condyle of tibia, lateral surface of tibia, and interosseous membrane
I: medial cuneiform and base of the first metatarsal
F: invert the foot
Dorsiflex the ankle (talocrural joint)
extensor digitorum longus
O: lateral condyle of tibia: proximal, anterior shaft of fibula
Interosseous membrane
I: middle and distal phalanges of second through fifth toes
F: Extend the second through fifth toes (metatarsophalangeal and interphalangeal joints)
Dorsiflex the ankle (talocrural joint)
Evert the foot
extensor hallucis longus
O: middle, anterior surface of fibula and interosseous membrane
I: distal phalanx of first toe
F: Extend the first toe (metatarsophalangeal and interphalangeal joints)
Dorsiflex the ankle (talocrural joint)
Invert the foot