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GBE > neurology of lower limb > Flashcards

neurology of lower limb Flashcards

1
Q

What is the dermatome of L1?

A

groin

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2
Q

What is the dermatome of L2?

A

mid thigh

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3
Q

What is the dermatome of L3?

A

knee

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4
Q

What is the dermatome of L4?

A

medial leg

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5
Q

What is the dermatome of L5?

A

lateral leg and middle toe

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6
Q

What is the dermatome of S1?

A

lateral foot (test small toe)

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7
Q

What is the dermatome of S2?

A

back of leg

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8
Q

What is the dermatome of S3?

A

gluteal region

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9
Q

What are the the cutaneous nerves in the gluteal region?

A

cluneal nerves

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10
Q

What are the the cutaneous nerves in the posterior thigh?

A

perforating and posterior femoral cutaneous nerves

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11
Q

What are the the cutaneous nerves in the groin?

A

subcostal, gentiofemoral and ilioinguinal nerves

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12
Q

What are the the cutaneous nerves in the lateral thigh?

A

lateral femoral cutaneous nerve

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13
Q

What are the the cutaneous nerves in the anterior thigh ?

A

anterior cutaneous nerver of the thigh and saphenous nerve

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14
Q

What are the the cutaneous nerves in the inner thigh?

A

obturator nerve

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15
Q

What are the the cutaneous nerves in the anterior and lateral leg?

A

common peroneal and lateral sural cutaneous nerves

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16
Q

What are the the cutaneous nerves in the leg and dorsum of foot?

A

superficial peroneal nerve

17
Q

What are the the cutaneous nerves in the lateral leg and heel?

A

sural nerve

18
Q

What are the myotomes of the hip?

A 
flexion = L2, L3
extension = L4, L5
19
Q

What are the myotomes of the knee?

A 
extension = L3, L4
flexion = L5, S1
20
Q

What are the myotomes of the ankle?

A 
extension = L4, L5
flexion = S1, S2
21
Q

What are the roots of the lumbar plexus?

A

anterior rami of L1-L4

22
Q

Why do you get referred pain in the knee and hip?

A

they have shared innervation

23
Q

What makes up the lumbar plexus?

A
  • iliohypogastric
  • ilioinguinal
  • gentiofemoral
  • lateral cutaneous nerve of the thigh
  • obturator
  • femoral
24
Q

What are the roots of the sacral plexus?

A

L4-S4

25
Q

What are the nerves of the sacral plexus?

A
  • superior gluteal
  • inferior gluteal
  • sciatic
  • posterior femoral cutaneous
  • pudendal

GBE (12 decks)

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