Lower Leg Muscles - Anterior Compartment Flashcards

1
Q

Tibialis Anterior m. - origin

A

Lateral condyle and superior half of lateral surface of tibia and interosseous membrane

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2
Q

Tibialis Anterior m. - insertion

A

medial and inferior surfaces of medial cuneiform and base of 1st MT

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3
Q

Tibialis Anterior m., Extensor digitorum longus m., Extensor hallucis longus m., Fibularis tertius m. - nerve

A

Deep fibular n. (L4, 5)

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4
Q

Tibialis Anterior m. - action

A
  • DF ankle

- Flex foot

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5
Q

Tibialis Anterior m. - blood supply

A
  • Anterior tibial a., anterior tibial recurrent a., medial malleolar network
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6
Q

Extensor digitorum m. - origin

A

Lateral condyle of tibia and superior 3/4 of medial surface of fibula and interosseous membrane

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7
Q

Extensor digitorum longus m. - insertion

A

Middle and distal phalanges of lateral 4 digits

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8
Q

Extensor digitorum longus m. - action

A
  • Extends lateral 4 digits

- DF ankle

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9
Q

Extensor digitorum longus m. - blood supply

A

Anterior tibial a., perforating branch of fibular a., lateral malleolar network

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10
Q

Extensor hallucis longus m. -origin

A

Middle part of anterior surface of fibula and interosseous membrane

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11
Q

Extensor hallucis longus m. - insertion

A

Dorsal aspect of base of distal phalanx of great toe

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12
Q

Extensor hallucis longus m. - action

A
  • Extends great toe

- DF ankle

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13
Q

Extensor hallucis longus m. -blood supply

A

Anterior tibial a., perforating branch of fibular a., medial malleolar network

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14
Q

Anterior Compartment muscles

A
  • Anterior tibialis m.
  • Extensor digitorum longus m.
  • Extensor hallucis longus m.
  • Fibularis tertius m.
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15
Q

Fibularis tertius m. - origin

A

Inferior third anterior surface of fibula and interosseous membrane

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16
Q

Fibularis tertius m. - insertion

A

Dorsum of base of 5th MT

17
Q

Fibularis tertius m. - action

A
  • DF ankle

- Eversion of foot

18
Q

Fibularis tertius m. - blood supply

A

Anterior tibial a., perforating branch of fibular a., medial malleolar network