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Rectus femoris
flex thigh, extend knee
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Sartorius
flex thigh, flex knee
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Iliopsoas
most powerful thigh flexor
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Tensor fascia latae
- abducts and flexes thigh
- extends knee
-
Pectineus
flex and ADDuct thigh
-
-
Adductor magnus
- ADDuct thigh
- Extends thigh
-
Obturator externus
- ADDuct thigh
- short lateral rotator of thigh
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Extensor digitorum brevis
- extension first four toes at all joints
- deep fibular nerve
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Obturator nerve
- VPR of L2-L4; ventral plexus
- ADDucts thigh
- cutaneous to medial thigh
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Femoral nerve
- VPR of L2-L4; dorsal plexus
- extends thigh
- cutaneous to skin of ant/med thigh and med leg/foot
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Tibial nerve
- VPR of L4-S3 sacral, ventral plexus
- hamstrings (except short biceps), extends thigh
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Common fibular
- VPR L4-S2 sacral plexus
- short biceps, ant/lat leg, dorsum foot
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Tibialis anterior
- Deep fibular nerve (L4-L5)
- dorsiflex and invert foot
-
Extensor digitorm longus
- Deep fibular nerve (L4-L5)
- extends lateral four digits and dorsiflexes ankle
-
Extensor hallucis longus
- deep fibular nerve (L4-L5)
- extends great toe and dorsiflexes ankle
-
Fibularis tertius
- deep fibular nerve (L4-L5)
- dorsiflexes ankle and aids in eversion of foot
-
Fibularis longus
- superficial fibular nerve (L5-S2)
- everts foot and weakly plantarflexes ankle
-
Fibularis brevis
- Superficial fibular nerve (L5-S2)
- Everts foot and weakly plantarflexes ankle
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Gastrocnemius
- Tibial nerve (S1-S2)
- plantarflexes ankle when knee extended
- raises heel while walking
- flexes leg at knee joint
-
Soleus
- Tibial nerve (S1-S2)
- plantarflexes ankle
- steadies leg on foot
-
Plantaris
- tibial nerve (S1-S2)
- weakly assists gastrocnemius in plantarflexing ankle
-
Tibial nerve
- posterior compartment leg, from sciatic nerve
- S1-S2
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Deep fibular nerve
- anterior compartment
- L4-L5
- from common fibular nerve (from sciatic)
-
Superficial fibular nerve
- lateral compartment
- from common fibular nerve
- L5-S2
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Popliteus
- tibial nerve (L4-S1)
- weakly flexes knee
- unlocks it by rotating femur on fixed tibia
- medially rotates tibia of unplanted limb
-
flexor hallucis longus
- tibial nerve (S2-S3)
- flexes big toe
- weakly plantarflexes ankle
- supports medial longitudinal arch of foot
-
Flexor digitorum longus
- tibial nerve (S2-S3)
- flexes lateral four digits
- plantarflexes ankle
- supports longitudinal arches of foot
-
tibialis posterior
- tibial nerve (L4-L5)
- plantarflexes ankle
- inverts foot
-
Tibialis posterior
inversion of foot
-
flexor digitorum longus
inversion of foot
-
flexor hallucis longus
inversion of foot
-
tibialis anterior
inversion of foot
-
extensor hallucis longus
inversion of foot
-
extensor digitorum longus
eversion of foot
-
peroneus brevis
eversion of foot
-
peroneus tertius
eversion of foot
-
abductor hallucis
- first layer plantar foot
- abducts big toe
-
flexor digitorum brevis
- first layer plantar foot
- flexes lateral four digits
- medial plantar nerve
-
abductor digiti minimi
- abducts lateral four digits
- first layer plantar foot
- lateral plantar nerve
-
flexor digitorum longus
- second layer plantar foot
- flex lateral four digits
-
quadratus plantae
- second layer plantar foot
- lateral plantar nerve
-
lumbricals
- second layer plantar foot
- flex metatarsalphalangeal joint
- extend interphalangeal joint
- lateral plantar nerve (2-4)
-
tendon flexor hallucis longus
- second layer plantar foot
- flexes big toe
-
flexor hallucis brevis
- third layer plantar foot
- splits into ABDuctor hallucis and ADDuctor hallucis
- medial plantar nerve
-
adductor hallucis
- third layer plantar foot
- adducts big toe
- lateral plantar nerve
-
flexor digiti minimi brevis
- third layer plantar foot
- flexes four lateral digits
- lateral plantar nerve
-
plantar interossei
- ADDuct lateral three digits
- fourth layer plantar foot
- lateral plantar nerve
-
dorsal interossei
- ABDuct lateral four digits
- fourth layer plantar foot
- lateral plantar nerve
-
fibularis longus
fourth layer plantar foot
-
tibialis posterior
fourth layer plantar foot
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ABDuctor hallucis
medial plantar nerve
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Medial plantar cutaneous
medial sole and plantar of first 3 digits
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Deep fibular cutaneous
dorsal skin between 1st two toes
-
Superficial fibular nerve cutaneous
dorsal skin
-
lateral plantar cutaneous
lateral sole and plantar last 1 1/2 digits
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