Foot & Leg Flashcards
Extensor Hallucis Longus
O: fibula, interosseous membrane
I: distal phalanx hallux
A: extend hallux & dorsiflex foot
N: deep fibular (peroneal)
Tibialis Anertior
O: upper 2/3 of tibia; interosseous membrane
I: 1st MT, medial cuneiform
A: dorsiflex, invert foot
N: deep fibular (peroneal)
Fibularis Longus
O: upper 2/3 fibula
I: 1st MT; medial cuneiform
A: evert & plantar flex foot
N: superficial fibular
Fibularis Brevis
O: lower 1/3 of fibular
I: 5th MT
A: evert & plantar flex foot
N: superficial fibular
Gastrocnemius
O: femoral condyles
I: calcaneus
A: plantar flex foot (fast), flex knee
N: tibial n.
Soleus
O: upper fibular & tibia
I: calcaneus
A: plantar flex foot (slow), maintaing standing
N: tibial n.
Plantaris
O: lateral supracondylar ridge
I: calcaneus
A: plantar flex foot
N: tibial n.
Posterior Group
Gastrocnemius
Soleus
Plantaris
Lateral Group
Fibularis Longus
Fibularis Brevis
Fibularis Tertius
Flexor Digitorum Longus
O: tibial
I: distal phalanges
A: flex toes & plantar flex foot
N: tibial
Deep Posterior Group
Flexor Digitorum Longus
Flexor Hallucis Longus
Tibialis Posterior
Flexor Hallucis Longus
O: fibula
I: distal phalanx hallux
A: flex hallux & plantar flex foot
N: tibial
Tibialis Posterior
O: tibia, fibula, IO membrane
I: navicular, calcaneus, cuboid, all cuneiforms, MTs 2-4
A: invert, plantar flex foot
N: tibial
Fibularis Tertius
O: lower 1/3 of fibula
I: 5th MT
A: plantar flex & invert??
N: deep fibular
Anterior muscles of the foot
Tibialis Anterior Extensor digitorum longus Extensor hallucis longus Fibularis tertius **All dorsiflex**
Posterior muscles of the foot
Tibialis posterior
Flexor digitorum & hallucis longus
Fibularis longus & brevis
all plantar flex
Dorsal surface of the foot
Extensor digitorum brevis
Extensor hallucis brevis
Extensor hallucis brevis
O: dorsal surface of calcaneus
I: base of proximal phalanx of big toe
A: extend big toe
N: deep fibular n.
Extensor digitorum brevis
O: dorsal surface of calcaneus
I: proximal phalanges
A: extend toes
N: deep fibular n.
Plantar surface of foot, superficial
abductor hallucis
flexor digitorum brevis
abductor digiti minimi
abductor hallucis
O: calcaneus
I: proximal phalanx hallux
A: flex, abduct big toe
N: medial plantar n.
flexor digitorum brevis
O: calcaneus
I: middle phalanx of 4 toes
A: flex lateral 4 toes
N: medial plantar n.
abductor digiti minimi
O: calcaneus
I: proximal phalanx of 5th toe
A: flex, abduct 5th toe
N: lateral plantar n.
deeper layer, plantar
quadratus plantae
lumbrical
quadratus plantae
O: calcaneus
I: tendons of flexor digitorum longus
A: flex lateral 4 toes
N: lateral plantar n.
lumbricals
O: tendons of flexor digitorum longus
I: extensor expansions
A: extend IP, flex MTP joints
N: Lumbrical 1: medial plantar n.
Lumbrical 2, 3, 4: lateral plantar n.flexor hallucis brevis
O: cuboid, lateral cuneiform I: proximal phalanx A: flex MTP jt N: medial plantar n. **on either side of flexor hallucis longus**
adductor hallucis
O: MT for oblique & transverse heads
I: proximal phalanx
A: flex MTP jt
N: lateral plantar n.
flexor digiti minimi
O: MT 5
I: proximal phalanx
A: lateral plantar n.
N: flex MTP jt.
plantar interossei (interpeni)
O: metatarsals
I
