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Neuro and geriatrics > Applied peripheral neuropathy > Flashcards

Applied peripheral neuropathy Flashcards

1
Q

What are the dermatomes of the upper limb?

A 
C5 - over deltoid
C6 - index finger
C7 - middle finger
C8 - little finger
T1 - inner arm
T2 - apex of axilla
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2
Q

What are the dermatomes of the lower limb?

A 
L2 - anterior medial thigh
L3 - over knee
L4 - medial aspect of tibia
L5 - dorsum of foot running to big toe
S1 - lateral heel
S2 - popliteal fossa
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3
Q

What are the nerve innervations for movements of the upper limb?

A 
C5 - shoulder abduction
C6 - elbow flexion
C7 - elbow extension
C8 - finger flexion
T1 - finger abduction
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4
Q

What are the nerve innervations for movements of the lower limb?

A 
L2 - hip flexion
L3 - knee extension
L4 - ankle dorsiflexion
L5 - extension of big toe
S1 - ankle plantar flexion
S2 - knee flexion
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5
Q

What muscle does shoulder abduction?

A

Deltoid

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6
Q

What nerve supplies the deltoid muscle and what cord and trunk of the brachial plexus does this arise from? What is the nerve root?

A

Axillary
Posterior
Upper
C5

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7
Q

What muscle does elbow flexion?

A

Biceps brachii

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8
Q

What nerve supplies the biceps brachii muscle and what cord and trunk of the brachial plexus does this arise from? What is the nerve root?

A

Musculocutaneous
Lateral
Upper
C6

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9
Q

What muscle does shoulder adduction?

A

Pectoralis major

Latissimus dorsi

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10
Q

What nerve supplies the pectoralis major muscle? What is the nerve root?

A

Pectoral nerves

C5-T1

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11
Q

What nerve supplies the latissimus dorsi muscle? What is the nerve root?

A

Thoracodorsal

C6-8

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12
Q

What muscle does elbow extension?

A

Triceps

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13
Q

What nerve supplies the triceps muscle and what cord and trunk of the brachial plexus does this arise from? What is the nerve root?

A

Radial
Posterior
Upper and middle
C7

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14
Q

What muscle does wrist extension?

A

Extensor carpi radialis

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15
Q

What nerve supplies the extensor carpi radialis muscle and what cord and trunk of the brachial plexus does this arise from? What is the nerve root?

A

Radial
Posterior
Upper and middle
C7/8

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16
Q

What muscle does wrist flexion?

A

Flexor carpi radialis

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17
Q

What nerve supplies the flexor carpi radialis muscle and what cord and trunk of the brachial plexus does this arise from? What is the nerve root?

A

Ulnar
Medial
Lower
C7/8

18
Q

What muscle does finger flexion?

A

FDS/FDP

19
Q

What nerve supplies the FDS/FDP muscles and what cord and trunk of the brachial plexus does this arise from? What is the nerve root?

A

Median (+ulnar)
Medial
Lower
C8

20
Q

What muscle does finger extension?

A

Extensor digitorum

21
Q

What nerve supplies the extensor digitorum muscle and what cord and trunk of the brachial plexus does this arise from? What is the nerve root?

A

Radial
Posterior
Lower
C8

22
Q

What muscle does finger abduction?

A

Dorsal interossei

23
Q

What nerve supplies the dorsal interossei muscle and what cord and trunk of the brachial plexus does this arise from? What is the nerve root?

A

Ulnar
Medial
Lower
T1

24
Q

What can cause a winged scapula?

A

Nerve lesion

Myopathy

25
Q

What nerve lesions can cause winged scapula?

A

Long thoracic (most common) - serratus anterior
Accessory (less common) - trapezius
Dorsal scapular nerve (extremely rare) - rhomboids

26
Q

What muscle does hip flexion?

A

Iliopsoas

27
Q

What is the nerve supply of iliopsoas and what is the nerve root?

A

Branch of femoral

L2

28
Q

What muscle does hip extension?

A

Gluteus maximus

29
Q

What is the nerve supply of gluteus maximus and what is the nerve root?

A

Inferior gluteal

L5-S2

30
Q

What muscle does knee extension?

A

Quads

31
Q

What is the nerve supply of the quads and what is the nerve root?

A

Femoral

L3

32
Q

What muscle does knee flexion?

A

Hamstrings

33
Q

What is the nerve supply of hamstrings and what is the nerve root?

A

Sciatic L5

Tibial (bit of peroneal) S1/2

34
Q

What muscle does ankle dorsiflexion?

A

Tibialis anterior

35
Q

What is the nerve supply of tibialis anterior and what is the nerve root?

A

Peroneal

L4

36
Q

What muscle does extension of the big toe?

A

Extensor hallucis longus

37
Q

What is the nerve supply of extensor hallucis longus and what is the nerve root?

A

Peroneal

L5

38
Q

What muscle does ankle plantar flexion?

A

Gastrocnemius

39
Q

What is the nerve supply of gastrocnemius and what is the nerve root?

A

Tibial

S1

40
Q

What are the differentials for foot drop?

A 
Muscle - myopathy
Nerve - peroneal nerve/sciatic nerve
Root L4/5
Anterior horn MND
Brain - parasaggital meningioma

Neuro and geriatrics (21 decks)

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