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MRCS - Anatomy Cian > LL: Leg > Flashcards

LL: Leg Flashcards

1
Q

Lower femur bony anatomy

A
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2
Q

Proximal tibia bony anatomy

A
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3
Q

Proximal fibula bony anatomy

A
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4
Q

Popliteal fossa content

A

From superficial to deep

Common peroneal nerve (medial to biceps femoris)

Tibial nerve (lateral to popliteal vessels)

Popliteal vein

Popliteal artery

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5
Q

The membranes separatign the compartments of the leg

A
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6
Q

Which tissues stabilise tibiofibular joint

A

Interosseous membrane

Anterior and posterior tibiofibular ligaments

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7
Q

Muscles of posterior compartment of leg

A

Superficial: gastrocnemius, plantaris, soleus

Deep: popliteus, flexor hallucis longus, flexor digitorum longus, tibilais posterior

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8
Q

Origin and insertion of gastrocnemius

A

Medial and lateral condyle to calcaneus

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9
Q

Origin and insertion of plantaris

A

Lateral supracondylar line of femur to calcaneus

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10
Q

Origin and insertion of soleus

A

Soleal line/medial tibia to calcaneus

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11
Q

Innervation to posterior compartment of leg

A

tibial nerve

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12
Q

Function of gastrocnemius and plantaris

A

Plantar flex

Flex knee

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13
Q

Function of soleus

A

Plantar flex

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14
Q

Origin and insertion of popliteus

A

Lateral femoral condyle to posterior tibia

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15
Q

Origin and insertion of flexor hallucic longus

A

posterior fibula to distal phalanx f big toe

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16
Q

Origin and insertion of flexor digitorum longus

A

Tibia to distal phalanges of lateral 4 toes

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17
Q

Origin and insertion of tibialis posterior

A

Interosseus membrane to tuberosity of navicular bone

18
Q

Function of popliteus

A

Stabilises knee joint (resists lateral flexion of tibia on femur)

Unlocks knee joint (laterally rotates femur on fixed tibia)

19
Q

Action of flexor hallucis longus

A

Flexes great toe

20
Q

Action of flexor digitorum longus

A

Flexes lateral four toes

21
Q

Action of tibialis posterior

A

Inversion

Plantarflexion

22
Q

Arterial supply of Leg

A

Sural: gastrocnemius

Anterior tibial: anterior compartment

Posteriro tibial: Posterior and lateral compartment

23
Q

Tibial nerve branches

A

Sural nerve

Medial calcaneal nerve

24
Q

Sural nerve supplies

A

Lower posterolateral side of leg and little toe

25
Q

Medial calcaneal nerve supplies

A

Medial side of leg

Sole of the heel

26
Q

Muscles of lateral compartment of the leg

A

Fibularis longus

Fibularis brevis

27
Q

Origin and insertion of fibularis longus

A

Fibular head to medial cuneiform and base of metatarsal 1

28
Q

Origin and insertion of fibularis brevis

A

Lower 2/3 of fibular shaft to lateral tubercle of metatarsal 5

29
Q

Action of fibularis longus and brevis

A

Eversion

30
Q

Innervation of lateral compartment of leg

A

superficial fibular nerve

31
Q

Superficial fibular nerve sensory innervation

A

Dorsum of foot except:

  • web space between great and 2nd toe (Deep fibular)
  • lateral side of little toe (sural branch of tibial nerve)
32
Q

Muscles of anterior compartment of leg

A

Tibialis anterior

Extensor hallucis longus

Extensor digitorum longus

Fibularis tertius

33
Q

Origin and insertion of tibialis anterior

A

Tibia to medial cuneiform

34
Q

Origin and insertion of Extensor hallucis longus

A

medial fibula to distal phalanx of distal toe

35
Q

Origin and insertion of extensor digitorum longus

A

medial fibula to distal phalanges bases

36
Q

Innervation of anterior compartment of leg

A

Deep fibular nerve

37
Q

Action of tibialis anterior

A

dorsiflexion

inversion

38
Q

Action of extensor hallucis longus/digitorum longus

A

dorsiflexion

Extension of great/lateral toes

39
Q

Action of fibularis tertius

A

Dorsiflexion

Eversion

40
Q

Arterial supply of anterior compartment of leg

A
41
Q

Action of anterior cruciate ligament

A

stops anterior displacement of tibia on femur

42
Q

Which structure separates the PCL from popliteal artery

A

oblique popliteal tendon

MRCS - Anatomy Cian (23 decks)

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