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LOWER LIMB > Anterior and Lateral Leg > Flashcards

Anterior and Lateral Leg Flashcards

1
Q

What is the innervation of the tibialis anterior?

A

Deep fibular nerve (L4,5)

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2
Q

What is the blood supply to the extensor digitorum longus?

A

Anterior tibial artery

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2
Q

What is the innervation of the fibularis tertius?

A

Deep fibular nerve

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3
Q

Where can you find the medial (deltoid) ligament of the ankle?

A

Attaches medial malleolus to multiple tarsal bones

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4
Q

What is the blood supply to the fibularis longus?

A

Fibular branch of the posterior tibial artery

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4
Q

What is the blood supply to the fibularis brevis?

A

Fibular branch of the posterior tibial artery

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5
Q

What is the proximal attachment of the tibialis anterior?

A

Proximal tibia, fibula and interosseous membrane

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5
Q

What is the function of the collateral ligament complex of the ankle joint?

A

Resist inversion of the ankle joint

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5
Q

What is a Pott’s fracture?

A

Occurs when foot is forcibly everted. This pulls on the strong medial ligament

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6
Q

How does the most common ankle joint injury occur?

A

Foot plantar flexed, inverted, and abducted. Strain forced on calcaneofibular and anterior talofibular ligaments of the LATERAL ligament of the ankle joint

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7
Q

What is the blood supply to the fibularis tertius?

A

Anterior tibial artery

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7
Q

What is the proximal attachment of the fibularis brevis?

A

Inferior lateral surface of fibula

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9
Q

What is the proximal attachment of the extensor hallucis longus?

A

Proximal tibia, fibula, and interosseous membrane

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10
Q

What is the distal attachment of the fibularis longus?

A

Base of the 1st metatarsal and medial cuneiform

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10
Q

What is the distal attachment of the fibularis brevis?

A

Dorsal surface of tuberosity on lateral side of base of 5th metatarsal

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10
Q

What is the action of the fibularis brevis?

A

Everts foot and weakly plantarflexes

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11
Q

What is the distal attachment of the extensor digitorum longus?

A

Middle and distal phalanges of lateral four digits

12
Q

What is the distal attachment of the tibialis anterior?

A

Superior aspect of the medial tarsal bones

13
Q

Where can you find the lateral collateral ligament complex of the ankle joint?

A

Lateral malleolus to talus and calcaneus

15
Q

What is the action of the extensor hallucis longus?

A

Extends great toe and dorsiflexes

16
Q

What is the innervation of the extensor digitorum longus?

A

Deep fibular nerve (L4,5)

16
Q

What is the action of the fibularis tertius?

A

Dorsiflexes ankle and aids in eversion of the foot

18
Q

What is the blood supply to the tibialis anterior?

A

Anterior tibial artery

19
Q

What type of joint is the talocrural joint?

A

Hinge (allows dorsiflexion and plantarflexion)

21
Q

What is the distal attachment of the extensor hallucis longus?

A

Distal phalanx of great toe (hallux)

22
Q

What is the blood supply to the extensor hallucis longus?

A

Anterior tibial artery

23
Q

What is the proximal attachment of the fibularis longus?

A

Head and lateral surface of fibula

25
Q

What is the innervation of the extensor hallucis longus?

A

Deep fibular nerve (L4,5)

26
Q

What is the action of the tibialis anterior?

A

Dorsiflexes and inverts foot

27
Q

What three bones articulate to form the ankle joint?

A

Medial malleolus of tibia, lateral malleolus of fibula, and talus

29
Q

What is the innervation of the fibularis brevis?

A

Superficial fibular nerve (L5,S1,2)

31
Q

What is the proximal attachment of the extensor digitorum longus?

A

Proximal tibia, fibula, and interosseous membrane

31
Q

What is the action of the extensor digitorum longus?

A

Extends lateral four digits and dorsiflexes

32
Q

What type of joint is the subtalar joint?

A

Gliding (allows inversion and eversion)

33
Q

What is the distal attachment of the fibularis tertius?

A

Dorsal surface of the 5th metatarsal

35
Q

What is the function of the interosseous membrane?

A

Stabilizes the tibiofibular junction and provides attachment for many of the leg muscles

36
Q

What is the action of the fibularis longus?

A

Everts foot and weakly plantarflexes

37
Q

Where is the interosseous membrane?

A

Strong fibrous sheet that connects the interosseous margin of the tibia and the interosseous margin of the fibula

39
Q

What is the proximal attachment of the fibularis tertius?

A

Inferior third of the anterior surface of the fibula and interosseous membrane

40
Q

What is the innervation of the fibularis longus?

A

Superficial fibular nerve

41
Q

What is the function of the deltoid ligament?

A

Stabilizes the medial side of the ankle, prevents excessive eversion of the ankle joint. Anterior parts limit plantar flexion and posterior parts limit dorsiflexion

LOWER LIMB (8 decks)

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