Anterior Leg Muscles Flashcards

1
Q

Tibialis anterior origin

A

Lateral surface of tibia and adjacent interosseous membrane

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2
Q

Tibialis anterior insertion

A

Medial and inferior surfaces of medial cuneiform and adjacent surfaces on base of metatarsal I

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3
Q

Tibialis anterior innervation

A

Deep fibular nerve (L4-L5)

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4
Q

Tibialis anterior function

A

Dorsiflexion of foot at ankle joint, inversion of foot, support of medial arch of foot

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5
Q

Extensor hallucis longus origin

A

Middle one half of medial surface of fibula and adjacent surface of interosseous membrane

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6
Q

Extensor hallucis longus insertion

A

Dorsal surface of base of distal phalanx of great toe

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7
Q

Extensor hallucis longus innervation

A

Deep fibular nerve (L5, S1)

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8
Q

Extensor hallucis longus function

A

Extension of great toe and dorsiflexion of foot

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9
Q

Extensor digitorium longus origin

A

Proximal one half of medial surface of fibula and related surface of lateral tibial condyle

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10
Q

Extensor digitorium longus insertion

A

Via dorsal digital expansions into bases of distal and middle phalanges of lateral four toes

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11
Q

Extensor digitorium longus innervation

A

Deep fibular nerve (L5, S1)

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12
Q

Extensor digitorium longus function

A

Extension of lateral four toes and dorsiflexion of foot

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13
Q

Fibularis tertius origin

A

Distal part of medial surface of fibula

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14
Q

Fibularis tertius insertion

A

Dorsomedial surface of base of metatarsal V

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15
Q

Fibularis tertius innervation

A

Deep fibular nerve (L5, S1)

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16
Q

Fibularis tertius function

A

Dorsiflexion and eversion of foot