Anterior and Lateral Leg & Dorsum of the Foot Flashcards
Where does tibialis anterior originate?
tibia, interosseous membrane and fibula
Where does extensor hallucis longus originate?
Tibia, interosseous membrane and fibula
Wehre does extensor digitorum longus originate?
Tibia, interosseous membrane and fibula
Where does tibialis anterior insert?
base of the 1st metatarsal, medial cuneiform
Where does fibularis tertius originate?
fibula
Where does extensor hallucis longus insert?
Distal phalanx of great toe
What innervates extensor hallucis longus?
deep fibular n.
What are the actions of extensor hallucis longus?
extension of the great toe & inversion of the foot
Dorsiflexion of the foot
What innervates tibialis anterior?
Deep fibular N.
What are the actions of tibialis anterior?
inversion and dorsiflexion of the foot
What innervates extensor digitorum longus?
deep fibular n.
What are the actions of extensor digitorum longus?
extension of digits 2-5
dorsiflexion of the foot
Where does fibularis tertius insert?
base of the 5th metatarsal
what innervates fibularis tertius?
Deep Fibular N.
What are the actions of fibularis tertius?
eversion and dorsiflexion of the foot
Where does fibularis longus originate?
upper 1/3 of the fibula
Where does fibularis longus insert?
base of the 1st metatarsal, medial cuneiform
What innervates fibularis longus?
superficial fibular N.
What are the actions of fibularis longus?
eversion of the foot
assists in plantar flexion
support of the arches
Where does fibularis brevis originate?
lower 2/3 of fibula
Where does fibularis brevis insert?
base of the 5th metatarsal
What innervates fibularis brevis?
Superficial fibular N.
What are the actions of fibularis brevis?
eversion
Where does extensor digitorum brevis originate?
calcaneus
Where does extensor digitorum brevis insert?
extensor expansion of digits 2-4
What innervates extensor digitorum brevis?
deep fibular n.
Where does extensor hallucis brevis originate?
calcaneus
Where does extensor hallucis brevis insert?
base of the proximal phalanx of digit 1
What innervates extensor hallucis brevis?
deep fibular n.
What are the actions of extensor hallucis brevis?
extension of the great toe
