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Muscles of Lower Extremity
Zourdos Anatomy 2
19
Anatomy
Undergraduate 3
01/30/2011

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Cards

Term
Tibialis Anterior
Definition
O – interosseous membrane
I – first metatarsal
A – Dorsiflexion
Term
Extensor Digitorum Longus
Definition
O – interosseous membrane
I – Middle/distal phalanges of toes 2-5
A – dorsiflexion
Term
Fibularis Tertius
Definition
O – interosseous membrane
I – Dorsum of fifth metatarsal
A – Dorsiflexion
Term
Extensor Hallucis Longus
Definition
O – interosseous membrane
I – Distal phalanx of big toe
A – dorsiflexion
Term
Fibularis Longus
Definition
O – Upper portion of lateral fibula
I – First metatarsal
A – Plantar flexion
Term
Fibularis Brevis
Definition
O – Distal fibula shaft
I –Proximal end of fifth metatarsal
A – Plantar flexion
Term
Gastrocnemius
Definition
O – Medial and lateral condyles of
femur
I – Posterior calcaneous
A – Plantar flexes foot when knee is extended
Term
Soleus
Definition
O –interosseous membrane
I – Posterior calcaneous
A – Plantar flexes foot
Term
Flexor Digitorum Longus
Definition
O – Posterior tibia
I – Under foot to distal phalanx of toes 2-5
A – Plantar flexion
Term
Flexor Hallucis Longus
Definition
O – interosseous membrane
I – Under foot to distal phalanx of big toe
A – Plantar flexion
Term
Tibialis Posterior
Definition
O – interosseous membrane
I – Behind medial malleolus and under arch
A – plantar flexion
Term
Extensor Digitorum Brevis
Definition
O – Anterior calcaneus
I – Base of proximal phalanx of great toe
A – Extends toes at metatarsophalangeal joints
Term
Flexor Digitorum Brevis
Definition
O – Calcaneal tuberosity
I – Middle phalanx of toes 2-4
A – Flex toes
Term
Abductor Hallucis
Definition
O – Calcaneal tuberosity
I – Proximal phalanx of great toe
A – Abducts great toe
Term
Abductor Digiti Minimi
Definition
O – Calcaneal tuberosity
I – Lateral side of base of little toe’s proximal phalanx
A – Abducts little toe
Term
Flexor Hallucis Brevis
Definition
O – cuboid bones
I – Two tendons on base of proximal phalanx of great toe
A – Flexes great toe’s metatarsophalangeal joint
Term
Flexor Digiti Minimi Brevis
Definition
O – 5th metatarsal
I – Base of proximal phalanx of toe 5
A – Flexes little toe at metatarsophalangeal joint
Term
Dorsal Interosseus
Definition
O – sides of metatarsals
I – extensor expansion over 1st phalanx of toes 2-4 on side opposite midaxis of foot and both sides of toe 3
A – abduct (diverge) toes
Term
Plantar Interosseus
Definition
O – the side of each metatarsal that faces the midaxis of the foot
I – extensor expansion on 1st phalanx of each toe (except toe 3) on side facing midaxis of foot
A - adducts toes
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