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