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