Anterior and Lateral Leg Flashcards
Separates the anterior compartment from the lateral compartment
Anterior intermuscular septum
Separates lateral compartment and posterior compartment
Posterior intermuscular septum
Separates deep posterior compartment and anterior compartment
Interosseous membrane
Separates superficial from deep muscles in posterior compartment
Transverse intermuscular septum
Tibialis anterior origin
Lateral condyle/lateral surface of proximal tibia, and interosseous membrane
Insertion of tibialis anterior
Base of M1 and medial cuneiform
Tibialis anterior innervation
Depp fibular (peroneal) nerve
Tibialis anterior action
Ankle dorsiflexion and inversion
Extensor digitorum longus origin
Lateral condyle of tibia, medial surface of fibula, and interosseous membrane
Extensor digitorum longus insertion
Intermediate and distal phalanges of digits 2-5
Extensor digitorum longus innervation
Deep fibular nerve
Extensor digitorum longus action
Ankle dorsiflexion
Extend digits 2-5
Extensor hallucis longus origin
Anterior surface of fibula and interosseous membrane
Extensor hallucis longus insertion
Distal phalanx of digit 1
Extensor hallucis longus innvervation
Deep fibular nerve
Extensor hallucis longus action
Ankle dorsiflexion
Extend hallux
Fibularis (peroneus) tertius origin
Anterior surface of fibula, interosseous membrane
Fibularis (peroneus) tertius insertion
Dorsal surface of base of MT5
Fibularis (peroneus) tertius innervation
Deep fibular nerve
Fibularis (peroneus) tertius action
Ankle dorsiflexion
Ankle eversion
Fibularis (peroneus) longus origin
Proximal (superior) 2/3 of lateral fibula
Fibularis (peroneus) longus insertion
Base of MT1 and medial cuneiform
Fibularis (peroneus) longus innervation
Superficial fibular (peroneal) nerve
Fibularis (peroneus) longus action
Ankle eversion
Ankle plantarflexion
Fibularis (peroneus) brevis origin
Distal (inferior) 2/3 of lateral fibula
Fibularis (peroneus) brevis insertion
Tuberosity of MT5
Fibularis (peroneus) brevis innervation
Superficial fibular (peroneal) nerve
Fibularis (peroneus) brevis action
Ankle eversion
Path of popliteal artery
Continuation of femoral artery
Passes through adductor hiatus to enter popliteal fossa
Divides into anterior and posterior tibial arteries
Branches of anterior tibial artery
Dorsal pedis- at the ankle
Anterior tibial recurrent-fibular head
Anterior medial malleolar
Anterior lateral malleolar
Branches of posterior tibial artery
Posterior tibial recurrent artery
Circumflex fibular artery
Medial calcaneal artery
Fibular artery
Branches of fibular artery
Posterior lateral malleolar
Lateral calcaneal artery
Perforating branch (anastomose with lateral malleolar)