Nerve Pathology Part 1

Question 1

What are the classifications of nerve damage?

Answer 1

Neuropraxia
Axonotmesis
Neurontmesis

Question 2

The PNS goes through what phases?

Answer 2

Wallerian Phase

Regeneration

Question 3

The CNS goes through what phases?

Answer 3

Transneuronal Atrophy

Regeneration of CNS

Question 4

What are named avulsion injuries?

Answer 4

Erb-Duchenne Paralysis

Klumpke’s Paralysis

Question 5

Erb-Duchenne paralysis involves what nerve roots?

Answer 5

C5-C6

Question 6

Klumpke’s Paralysis involves what nerve roots?

Answer 6

C7/8-T1

Question 7

Approximatly 80% of radicular presentations are due to?

Answer 7

Foraminal Encroachment

Question 8

20% of radicular presentations are due to?

Answer 8

Disc Herniation

Question 9

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

Answer 9

Trauma

Question 10

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

Answer 10

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

Question 11

Compression of the disc can be due to?

Answer 11

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

Question 12

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

Answer 12

N Root

Question 13

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

Answer 13

Peripheral N

Question 14

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

Answer 14

Weakness on Examination

Question 15

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

Answer 15

Weakness

Question 16

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

Answer 16

Pronation

Question 17

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

Answer 17

Spinal N

Question 18

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

Answer 18

C5 Spinal N

Question 19

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

Answer 19

Spinal Nerves or Segments

Question 20

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

Answer 20

Overlap of Innervation

Question 21

What are the IVF structures that go out?

Answer 21

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

Question 22

What are the boundaries for the IVF?

Answer 22

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