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Learning Points > Learning Point #1 (neuro-brachial plexus) > Flashcards

Learning Point #1 (neuro-brachial plexus) Flashcards

1
Q

From which spinal cord segments does the suprascapular nerve originate?

A

C6-C7

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2
Q

From which spinal cord segments does the musculocutaneous nerve originate?

A

C6-C8

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3
Q

From which spinal cord segments does the radial nerve originate?

A

C7-T2

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4
Q

From which spinal cord segments do the median and ulnar nerves originate?

A

C8-T2

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5
Q

From which spinal cord segments does the lateral thoracic nerve originate?

A

C8-T1

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6
Q

From which spinal cord segments do the sympathetic nerves to the head and neck originate?

A

T1-T3

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7
Q

From which spinal cord segments does the obturator nerve originate?

A

L4-L6

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8
Q

From which spinal cord segments does the femoral nerve originate?

A

L4-L6

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9
Q

From which spinal cord segments does the sciatic nerve originate?

A

L6-S2

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10
Q

From which spinal cord segments does the peroneal nerve originate?

A

L6-S2

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11
Q

From which spinal cord segments does the tibial nerve originate?

A

L6-S2

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12
Q

Which muscles does the suprascapular nerve innervate?

A

SupraspinatusInfraspinatus

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13
Q

Which muscles does the musculocutaneous nerve innervate?

A

Biceps brachiiBrachialis

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14
Q

Which muscles does the radial nerve innervate?

A

Triceps brachiiExtensor carpi radialisDigital extensors

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15
Q

Which muscles do the median and ulnar nerves innervate?

A

Superficial and deep digital flexorsCarpal flexors

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16
Q

Which muscles does the lateral thoracic nerve innervate?

A

Cutaneous trunci

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17
Q

Which muscles do the sympathetic nerves to the head and neck innervate?

A

Dilator of pupil

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18
Q

Which muscles does the obturator nerve innervate?

A

PectineusGracilis

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19
Q

Which muscles does the femoral nerve innervate?

A

Quadriceps groupPsoas group

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20
Q

Which muscles does the sciatic nerve innervate?

A

Biceps femorisSemimembranosusSemitendinosusCranial tibialGastrocnemius

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21
Q

Which muscles does the peroneal nerve innervate?

A

Cranial tibial

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22
Q

Which muscles does the tibial nerve innervate?

A

Gastrocnemius

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23
Q

Which reflexes are affected with dysfunction of the suprascapular nerve?

A

None

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24
Q

Which reflexes are affected with dysfunction of the musculocutaneous nerve?

A

BicepsWithdrawal

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25
Q

Which reflexes are affected with dysfunction of the radial nerve?

A

TricepsExtensor carpi radialis

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26
Q

Which reflexes are affected with dysfunction of the median and ulnar nerves?

A

Withdrawal

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27
Q

Which reflexes are affected with dysfunction of the lateral thoracic nerve?

A

Cutaneous trunci

28
Q

Which reflexes are affected with dysfunction of the sympathetic nerves to the head and the neck?

A

Pupillary light reflex

29
Q

Which reflexes are affected with dysfunction of the obturator nerve?

A

None

30
Q

Which reflexes are affected with dysfunction of the femoral nerve?

A

Patellar

31
Q

Which reflexes are affected with dysfunction of the sciatic nerve?

A

WithdrawalCranial tibialGastrocnemius

32
Q

Which reflexes are affected with dysfunction of the peroneal nerve?

A

Cranial tibial

33
Q

Which reflexes are affected with dysfunction of the tibial nerve?

A

Gastrocnemius

34
Q

What muscle function is lost with dysfunction of the suprascapular nerve?

A

Shoulder extension

35
Q

What muscle function is lost with dysfunction of the musculocutaneous nerve?

A

Elbow flexion

36
Q

What muscle function is lost with dysfunction of the radial nerve?

A

Elbow extensionCarpus extensionDigit extension

37
Q

What muscle function is lost with dysfunction of the median and ulnar nerves?

A

Carpus flexionDigit flexion

38
Q

What muscle function is lost with dysfunction of the lateral thoracic nerve?

A

Cutaneous trunci

39
Q

What muscle function is lost with dysfunction of the sympathetic nerves to the head and the neck?

A

Pupil dilation

40
Q

What muscle function is lost with dysfunction of the obturator nerve?

A

Hip adduction

41
Q

What muscle function is lost with dysfunction of the femoral nerve?

A

Stifle extensionHip flexion

42
Q

What muscle function is lost with dysfunction of the sciatic nerve?

A

Hip extensionStifle flexionHock flexion and extensionDigits flexion and extension

43
Q

What muscle function is lost with dysfunction of the peroneal nerve?

A

Hock flexionDigit extension

44
Q

What muscle function is lost with dysfunction of the tibial nerve?

A

Hock extensionDigit flexion

45
Q

What cutaneous sensation is lost with dysfunction of the suprascapular nerve?

A

Shoulder sensation

46
Q

What cutaneous sensation is lost with dysfunction of the musculocutaneous nerve?

A

Medial antebrachium and first digit sensation

47
Q

What cutaneous sensation is lost with dysfunction of the radial nerve?

A

Cranial antebrachium and foot sensation

48
Q

What cutaneous sensation is lost with dysfunction of the median and ulnar nerve?

A

Caudal antebrachium and foot Lateral aspect of 5th digit

49
Q

What cutaneous sensation is lost with dysfunction of the lateral thoracic nerve?

A

None

50
Q

What cutaneous sensation is lost with dysfunction of the sympathetic nerves of the head and the neck?

A

None

51
Q

What cutaneous sensation is lost with dysfunction of the obturator nerve?

A

None

52
Q

What cutaneous sensation is lost with dysfunction of the femoral nerve?

A

Medial surface of limb and first digit

53
Q

What cutaneous sensation is lost with dysfunction of the sciatic nerve?

A

Entire limb, except medial aspect and first digit

54
Q

What cutaneous sensation is lost with dysfunction of the peroneal nerve?

A

Craniolateral surface of limb, distal to stifle

55
Q

What cutaneous sensation is lost with dysfunction of the tibial nerve?

A

Caudal surface of limb, distal to stifle

56
Q

What signs of dysfunction are seen when the suprascapular nerve is affected?

A

Little/limited gait abnormality +/- shoulder abduction

57
Q

What signs of dysfunction are seen when the musculocutaneous nerve is affected?

A

Little/limited gait abnormality, weak elbow flexion

58
Q

What signs of dysfunction are seen when the radial nerve is affected?

A

Loss of weight bearing, knuckling

59
Q

What signs of dysfunction are seen when the median and ulnar nerves are affected?

A

Little/limited gait abnormality, mild carpus hyperextension

60
Q

What signs of dysfunction are seen when the lateral thoracic nerve is affected?

A

None

61
Q

What signs of dysfunction are seen when the sympathetic nerves to the head and the neck are affected?

A

Miosis (partial horners), ipsilateral peripheral vasodilation causing elevated skin temperature

62
Q

What signs of dysfunction are seen when the obturator nerve is affected?

A

Little/limited gait abnormality

63
Q

What signs of dysfunction are seen when the femoral nerve is affected?

A

Loss of weight bearing

64
Q

What signs of dysfunction are seen when the sciatic nerve is affected?

A

Knuckling of paws but weight bearing present

65
Q

What signs of dysfunction are seen when the peroneal nerve is affected?

A

Hyperextended hockKnuckled paw

66
Q

What signs of dysfunction are seen when the tibial nerve is affected?

A

Dropped hock

Learning Points (6 decks)

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