soleus plantar flex the ankle (talocrural joint) abductor hallucis Tibial L4, 5, S1 (toe flexion) tibialis anterior lateral condyle of the tibia; proximal, lateral surface of tibia; and interosseous membrane (inversion, dorsiflexion) popliteus Tibial L4, 5, S1 flexor hallucis brevis Tibial L4, 5, S1 tibialis posterior proximal, posterior shafts of tibia and fibula; and interosseous membrane (inversion, plantar flexion) plantaris calcaneus via calcaneal tendon (plantar flexion) flexor hallucis longus Flex first toe, weak plantar flexion of ankle, invert the foot extensor hallucis longus middle, anterior surface of fibula and interosseous membrane (dorsiflexion, inversion) flexor digitorum brevis middle phalanges of second through fifth toes (toe flexion) popliteus proximal, posterior aspect of tibia plantar interossei medial surfaces of 3-5 metatarsals (toe flexion) abductor digiti minimi helps you stay stabilized on your foot Gastrocnemius one of the few muscles that crosses two joints fibularis brevis evert the foot, assist to plantar flex the ankle (talocrural joint) flexor digitorum longus tibial L5, S1, (2) (plantar flexion, inversion) adductor hallucis the key for maintaining the transverse arch of your foot extensor digitorum longus it lifts your foot and your toes at the same time flexor digiti minimi brevis it acts like a mini hand gripping the ground tibialis anterior keeps your toes from dragging while you walk fibularis longus head of fibula and proximal two-thirds of lateral fibula (eversion) dorsal interossei adjacent surfaces of all metatarsals popliteus medially rotate the flexed knee (tibiofemoral joint), flex the knee (T/F joint) extensor hallucis brevis dorsal surface of calcaneus (toe extension) lumbricals first: tibial L4, 5, S1 2-4: Tibial L(4), (5), S1, 2 extensor digitorum brevis Deep fibular L4, 5, S1 dorsal interossei abduct 2-4 toes, flex 2-4 toes (metatarsophalangeal joint) Plantaris calcaneus via calcaneal tendon quadratus plantae assist flexor digitorum longus to flex 2-5 toes soleus plantar flex the ankle (talocrural joint) abductor hallucis Tibial L4, 5, S1 (toe flexion) tibialis anterior lateral condyle of the tibia; proximal, lateral surface of tibia; and interosseous membrane (inversion, dorsiflexion) popliteus Tibial L4, 5, S1 flexor hallucis brevis Tibial L4, 5, S1 tibialis posterior proximal, posterior shafts of tibia and fibula; and interosseous membrane (inversion, plantar flexion) plantaris calcaneus via calcaneal tendon (plantar flexion) flexor hallucis longus Flex first toe, weak plantar flexion of ankle, invert the foot extensor hallucis longus middle, anterior surface of fibula and interosseous membrane (dorsiflexion, inversion) flexor digitorum brevis middle phalanges of second through fifth toes (toe flexion) popliteus proximal, posterior aspect of tibia plantar interossei medial surfaces of 3-5 metatarsals (toe flexion) abductor digiti minimi helps you stay stabilized on your foot Gastrocnemius one of the few muscles that crosses two joints fibularis brevis evert the foot, assist to plantar flex the ankle (talocrural joint) flexor digitorum longus tibial L5, S1, (2) (plantar flexion, inversion) adductor hallucis the key for maintaining the transverse arch of your foot extensor digitorum longus it lifts your foot and your toes at the same time flexor digiti minimi brevis it acts like a mini hand gripping the ground tibialis anterior keeps your toes from dragging while you walk fibularis longus head of fibula and proximal two-thirds of lateral fibula (eversion) dorsal interossei adjacent surfaces of all metatarsals popliteus medially rotate the flexed knee (tibiofemoral joint), flex the knee (T/F joint) extensor hallucis brevis dorsal surface of calcaneus (toe extension) lumbricals first: tibial L4, 5, S1 2-4: Tibial L(4), (5), S1, 2 extensor digitorum brevis Deep fibular L4, 5, S1 dorsal interossei abduct 2-4 toes, flex 2-4 toes (metatarsophalangeal joint) Plantaris calcaneus via calcaneal tendon quadratus plantae assist flexor digitorum longus to flex 2-5 toes
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A-plantar flex the ankle (talocrural joint)
N-Tibial L4, 5, S1 (toe flexion)
O-lateral condyle of the tibia; proximal, lateral surface of tibia; and interosseous membrane (inversion, dorsiflexion)
N-Tibial L4, 5, S1
N-Tibial L4, 5, S1
O-proximal, posterior shafts of tibia and fibula; and interosseous membrane (inversion, plantar flexion)
I-calcaneus via calcaneal tendon (plantar flexion)
A-Flex first toe, weak plantar flexion of ankle, invert the foot
O-middle, anterior surface of fibula and interosseous membrane (dorsiflexion, inversion)
I-middle phalanges of second through fifth toes (toe flexion)
I-proximal, posterior aspect of tibia
I-medial surfaces of 3-5 metatarsals (toe flexion)
M-helps you stay stabilized on your foot
M-one of the few muscles that crosses two joints
A-evert the foot, assist to plantar flex the ankle (talocrural joint)
N-tibial L5, S1, (2) (plantar flexion, inversion)
M-the key for maintaining the transverse arch of your foot
M-it lifts your foot and your toes at the same time
M-it acts like a mini hand gripping the ground
M-keeps your toes from dragging while you walk
O-head of fibula and proximal two-thirds of lateral fibula (eversion)
O-adjacent surfaces of all metatarsals
A-medially rotate the flexed knee (tibiofemoral joint), flex the knee (T/F joint)
O-dorsal surface of calcaneus (toe extension)
N-first: tibial L4, 5, S1
2-4: Tibial L(4), (5), S1, 2
N-Deep fibular L4, 5, S1
A-abduct 2-4 toes, flex 2-4 toes (metatarsophalangeal joint)
I-calcaneus via calcaneal tendon
A-assist flexor digitorum longus to flex 2-5 toes
