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Anatomy of Lower Limb and Spine > Anterior Compartment of Leg > Flashcards

Anterior Compartment of Leg Flashcards

1
Q

What is the origin of Tibialis Anterior?

A

Lateral surface of TIBIA

and adjacent interosseous membrane

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2
Q

What is the insertion of Tibialis Anterior?

A

Medial and inferior surfaces of the MEDIAL CUNEIFORM.

Adjacent surfaces of base of metatarsal 1

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3
Q

What is the innervation of Tibialis Anterior/?

A

Deep Fibular Nerve

L4, L5

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4
Q

What is the action of Tibialis Anterior?

A

Dorsiflexion of foot
inversion of foot
support of medial arch of foot

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5
Q

What is the origin of extensor digitorum longus?

A

Proximal 1/2 of medial surface of FIBULA.

Related surface of the LATERAL TIBIAL CONDYLE

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6
Q

What is the innervation of Extensor Digitorum Longus?

A

Deep Fibular Nerve

L4, S1

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7
Q

What is the function of Extensor Digitorum Longus

A

Extension of lateral 4 toes

Dorsiflexion of foot

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8
Q

What is the origin of Extensor Hallucis Longus?

A

Middle 1/2 of MEDIAL SURFACE of FIBULA

and adjacent interosseous membrane.

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9
Q

What is the insertion of Extensor hallucis longus?

A

Dorsal surface, base of distal phalanx of GREAT TOE

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10
Q

what is the innervation of extensor hallucis longus?

A

Deep Fibular Nerve

L5, S1

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11
Q

What is the action of Extensor Hallucis Longus?

A

Extension of great toe

Dorsiflexion of foot

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12
Q

What is the insertion of extensor digitorum longus?

A

base of distal and middle phalanges of lateral 4 toes

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13
Q

what is the origin of fibularis tertius?

A

DISTAL part of medial surface of FIBULA

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14
Q

What is the insertion of fibularis tertius?

A

Dorso medial surface of base of METATARSAL 5

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15
Q

what is the innervation of fibularis tertius?

A

Deep fibular nerve

L5, S1

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16
Q

What is the action of fibularis tertius?

A

Dorsiflexion

Eversion of foot

17
Q

which muscles of the anterior comp of the leg cause eversion of the foot?

A

Fibularis tertius

18
Q

Which muscles of the anterior comp of the leg cause dorsiflexion of the foot?

A 
All 4 muscles:
Tibialis anterior
Ext digitorum longus
Ext hallucis longus
Fibularis tertius
19
Q

Which muscles of the anterior comp of the leg invert the foot?

A

Tibialis anterior

20
Q

which muscles of the anterior comp of the leg originate from the fibula?

A

Extensor digitorum Longus (proximal 1/2 of medial surface of fibula)

Extensor hallucis longus (middle 1/3 of medial surface of fibula)

fibularis tertius (distal part of medial surface of fibula)

Anatomy of Lower Limb and Spine (15 decks)

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