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MBChB221 Musculoskeletal > Anterolateral Leg > Flashcards

Anterolateral Leg Flashcards

1
Q

Eversion Foot

A

Sole outwards

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2
Q

Inversion Foot

A

Sole inwards

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3
Q

Which leg compartment is most vulnerable to compartment syndrome

A

Anterior

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4
Q

Anterior Leg Anterior Boundary

A

Deep Fascia/Skin

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5
Q

Anterior Leg Posterior Boundary

A

Interosseous Membrane

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6
Q

Anterior Leg Medial Boundary

A

Tibia

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7
Q

Anterior Leg Lateral Boundary

A

Anterior Intermuscular Septum

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8
Q

Anterior Leg Compartment Movement

A

DorsiFlexion

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9
Q

Tibialis Anterior Origin

A

Proximal Tibia

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10
Q

Tibialis Anterior Insertion

A

Medial Cuneiform / 1st Metatarsal

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11
Q

Tibialis Anterior Innveration

A

Deep Peroneal

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12
Q

Tibialis Anterior Movement

A

Dorsi Flexion
Inversion of ankle

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13
Q

Extensor Halucis Longus Origin

A

Fibula

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14
Q

Extensor Halucis Longus Insertion

A

1st Distal Phalanx

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15
Q

Extensor Halucis Longus Nerve

A

Deep Peroneal

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16
Q

Extensor Halucis Longus Movement

A

Extends Great Toe
Dorsi flexes Ankle

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17
Q

Extensor Digitorum Longus Origin

A

Tibia Lateral Condyle
Fibula

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18
Q

Extensor Digitorum Longus Insertion

A

Middle/Distal Phalanx of 4 Lat Toes

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19
Q

Extensor Digitorum Longus Innervation

A

Deep Peroneal

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20
Q

Extensor Digitorum Longus Movement

A

Dorsiflex ankle
Extend toes

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21
Q

Peroneus Tertius Origin

A

Inferior Fibula

22
Q

Peroneus Tertius Insertion

A

5th Metatarsal

23
Q

Peroneus Tertius Movement

A

Dorsiflexion
Eversion

24
Q

Peroneus Tertius Nerve

A

Deep Peroneal

25
Q

Lateral Compartment Nerve

A

Superficial Peroneal

26
Q

Which Leg Compartment has no artery

A

Lateral

27
Q

Peroneus Longus Origin

A

Superior Fibula

28
Q

Pernoeus Longus Insertion

A

Medial Cuneiform
1st Metatarsal

29
Q

Peroneus Longus Movement

A

Plantarflexion
Everts foot

30
Q

Peroneus Longus Nerve

A

Superficial Peroneal

31
Q

Peroneus Brevis Nerve

A

Superficisal Peroneal

32
Q

Peroneus Brevis Action

A

Plantarflexion
Everts foot

33
Q

Peroneus Brevis Origin

A

Inferior Fibula

34
Q

Peroenus Brevis Insertion

A

5th Metatarsal

35
Q

Foot Retinaculum

A

Superior Extensor Retinaculum
Inferior Extensor Retinaculum

36
Q

Superior Extensor Retinaculum role

A

Prevents bowstringing of EDL, EHL, Peroneus Tertius and Tibialis Anterior (dorsiflexors)

37
Q

Inferior Extensor Retinaculum does

A

Prevents bowstringing of peroneus longus and Brevis (plantarflexors)

38
Q

Sciatic Nerve Roots

A

L4-S3

39
Q

Sciatic Nerve exits pelvis via

A

Greater Sciatic Foramen

40
Q

Sciatic Nerve two branches

A

Common Peroneal (ant/lat)
Tibial (post)

41
Q

Common Peroneal Nerve divides into __________ at the _______

A

Deep/Superficial Peroneal, Neck of fibula (just after exiting popliteal fossa)

42
Q

Deep Peroneal Nevre supplies

A

Anterior Leg Compartment, dorsal foot muscles, cutaneous first webspace

43
Q

SUperifical Peroneal Nerve supplies

A

Lateral leg muscles, cutaneous anterior leg + dorsal foot

44
Q

How does anterior tibial go from posterior -> anterior

A

Hole in interosseous membrane

45
Q

The lateral leg compartment is supplied by branches of ______ despite having no artery in the compartment

A

Fibular

46
Q

Dorsalis Pedis is the continuation of

A

Anterior Tibial

47
Q

Anterior Tibial becomes Dorsalis Pedis when

A

Crossing between the malleoli

48
Q

Peroneal Artery is a branch of

A

Posterior Tibial

49
Q

Dorsal Foot muscles supplied by

A

Deep Peroneal Nerve

50
Q

Key clinical finding of compartment syndrome

A

Pain (too late if anything else eg pulselessness is found)

51
Q

Foot drop caused by weakness of _______ muscles

A

Dorsiflexors

52
Q

Which nerves could be injured to cause foot drop

A

Deep Peroneal (therefore common peroneal, sciatic or L4-S3 roots)

MBChB221 Musculoskeletal (26 decks)

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