Leg and Foot Flashcards
Gastrocnemius Origin
Condyles of the femur, posterior surfaces
Gastrocnemius Insertion
Calcaneus via calacaneal tendon
Gastrocnemius Actions
Flex knee
Plantar flex ankle (point toe)
Soleus Origin
Soleal line; proximal, posterior surface of tibia and posterior aspect of head of fibula
Soleus Insertion
Calcaneus via calcaneal tendon
Soleus Action
Plantar flex ankle
Plantaris Origin
Lateral supracondylar line of femur
Plantaris Insertion
Calcaneus (calcaneal tendon)
Plantaris Action
Weak plantar flexion; Weak flexion of the knee
Popliteus Origin
Lateral condyle of the femur
Popliteus Insertion
Proximal, posterior aspect of tibia
Popliteus Action
Medially rotates the flexed knee
Flex knee
Peroneus Longus Origin
Head of fibula and proximal 2/3 of lateral fibula
Peroneus Longus Insertion
Base of the 1st metatarsal and medial cuneiform
Peroneus Longus Action
Evert foot; assist plantar flexion of ankle
Peroneus Brevis Origin
Distal 2/3 of lateral fibula
Peroneus Brevis Insertion
Tuberosity of 5th metatarsal
Peroneus Brevis Action
Evert foot; assist plantar flexion of ankle
Tibialis Anterior Origin
Lateral condyle of tibia; proximal, lateral surface of tibia and interosseous membrane
Tibialis Anterior Insertion
Medial cuneiform and base of 1st metatarsal
Tibialis Anterior Action
Invert foot; dorsiflex ankle
Extensor Digitorum Longus Origin
Lateral condyle of tibia; proximal, anterior shaft of fibula and interosseous membrane
Extensor Digitorum Longus Insertion
Middle and distal phalanges of 2nd-5th toes
Extensor Digitorum Longus Action
Extend 2nd-5th toes
dorsiflex ankle
Evert foot