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Nerve Pathology Part 1 Flashcards

(22 cards)

1
Q

What are the classifications of nerve damage?

A

Neuropraxia
Axonotmesis
Neurontmesis

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2
Q

The PNS goes through what phases?

A

Wallerian Phase

Regeneration

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3
Q

The CNS goes through what phases?

A

Transneuronal Atrophy

Regeneration of CNS

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4
Q

What are named avulsion injuries?

A

Erb-Duchenne Paralysis

Klumpke’s Paralysis

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5
Q

Erb-Duchenne paralysis involves what nerve roots?

A

C5-C6

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6
Q

Klumpke’s Paralysis involves what nerve roots?

A

C7/8-T1

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7
Q

Approximatly 80% of radicular presentations are due to?

A

Foraminal Encroachment

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8
Q

20% of radicular presentations are due to?

A

Disc Herniation

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9
Q

What is reported in 15% of cases of cervical radiculopathy?

A

Trauma

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10
Q

Why is disc herniation not a cause of radiculopathy in the cervical spine?

A

Protection from PLL
Location of nerve roots/spinal N in IVF
Loss of nucleus pulpous by age 45

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11
Q

Compression of the disc can be due to?

A

Fibrous Tissue in IVF
Buckling of Ligamentum Flavum
Osteophytes from Superior and Inferior Articular Processes

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12
Q

If a number is listed it is in reference to the?

A

N Root

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13
Q

If a name is listed it is in reference to the?

A

Peripheral N

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14
Q

In subjects with electrodiagnostic evidence of radicuopathy 64%-75% will have?

A

Weakness on Examination

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15
Q

In subjects with electrodiagnostic evidence of radicuopathy only 15%-34% will complain of?

A

Weakness

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16
Q

Although forearm flexion/wrist extension are used for C6 and elbow extension for C7, what is an option?

17
Q

A spinal segment does not equal all the nerves that goes to that?

18
Q

Sensory N fibers in C5 spinal segment may not contribute to the?

19
Q

Nerve fibers transmitting different sensory modalities to the same skin area may derive from different?

A

Spinal Nerves or Segments

20
Q

What from 2 spinal N may result in no loss of sensation when one is compressed or damaged?

A

Overlap of Innervation

21
Q

What are the IVF structures that go out?

A
Dural Root Sleeve
Spinal N Root
Lymphatic Channels
Sinu-Vertebral N
Communicating V
Segmental A
22
Q

What are the boundaries for the IVF?

A

Pedicle above and below
Vertebral Body above and below
Disc
Z Joint