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
Extensor Hallucis Longus Origin
Middle, anterior surface fibula and interosseous membrane
Extensor Hallucis Longus Insertion
Distal phalanx of 1st toe
Extensor Hallucis Longus Action
Extend 1st toe
Dorsiflex ankle
Invert foot
Tibialis Posterior Origin
Proximal, posterior shafts of tibia and fibula
Interosseous membrane
Tibialis Posterior Insertion
All five tarsal bones and bases of 2nd-4th metatarsals
Tibialis Posterior Action
Invert foot
Plantar flex ankle
Flexor Digitorum Longus Origin
Middle, posterior surface of tibia
Flexor Digitorum Longus Insertion
Distal phalanges of 2nd-5th toes
Flexor Digitorum Longus Action
Flex 2nd-5th toes
Weak plantar flexion
Invert the foot
Flexor Hallucis Longus Origin
Middle half of posterior fibula
Flexor Hallucis Longus Insertion
Distal phalanx of 1st toe
Flexor Hallucis Longus Action
Flex 1st toe
Weak plantar flexion
Invert the foot