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