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Surgery > MSK nerves - lower limb > Flashcards

MSK nerves - lower limb Flashcards

1
Q

What is the motor function of the femoral nerve?

A

Knee extension
Thigh flexion

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2
Q

What is the sensory distribution of the femoral nerve?

A

Anterior and medial aspect of the thigh and lower leg

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3
Q

What nerve might be damaged as a result of hip and pelvic fractures?

A

Femoral nerve

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4
Q

What is the motor function of the obturator nerve?

A

Thigh adduction

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5
Q

What is the sensory distribution of the obturator nerve?

A

Medial thigh

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6
Q

What nerve may be damaged as a result of anterior thigh dislocation?

A

Obturator nerve

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7
Q

What is the sensory distribution of the lateral cutaneous nerve of the thigh?

A

Lateral and posterior aspects of the thigh

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8
Q

What can compression of the lateral cutaneous nerve of the thigh near the ASIS cause?

A

Meralgia Paraesthesia

Characterised by tingling, pain and numbness in the distribution of the lateral cutaneous nerve of the thigh

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9
Q

What is the motor function of the tibial nerve?

A

Foot plantarflexion and inversion

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10
Q

What is the sensory distribution of the tibial nerve?

A

Sole of the foot

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11
Q

What is the motor function of the common peroneal nerve?

A

Foot dorsiflexion and eversion
Innervates extensor hallucis longus

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12
Q

What is the sensory distribution of the common peroneal nerve?

A

Dorsum of the foot and lower lateral part of the leg

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13
Q

What nerve is damaged if a patient presents with foot drop?

A

Common peroneal nerve

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14
Q

What is the role of the superior gluteal nerve?

A

Hip abduction

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15
Q

What nerve may be damaged as a result of a posterior hip dislocation?

A

Superior gluteal nerve

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16
Q

If the superior gluteal nerve is damaged, what clinical sign might be seen?

A

Positive trendelenburg sign

17
Q

What is the function of the inferior gluteal nerve?

A

Hip extension and lateral rotation

18
Q

How might a patient present if they have injured their inferior gluteal nerve?

A

Difficulty rising from seated position
Can’t jump, can’t climb stairs

19
Q

What nerve roots are being tested by the knee jerk reflex?

A

L3-L4

(knee has 4 letters - L4)

20
Q

What nerve roots are tested by the ankle jerk reflex?

A

S1-S2

Surgery (8 decks)

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