neuro exam Flashcards Preview

SBM neurology > neuro exam > Flashcards

Flashcards in neuro exam Deck (22):
1

characteristics of pain and temperature sensory nerves

- small and slow
- many unmyelinated
- synapse with spinothalamic tract

2

characteristics of nerves for well localized touch and pressure, and conscious proprioception

- large
- heavily myelinated
- dorsal column, medial lemniscus

3

nerves for unconscious proprioception

- muscle stretch (spindles)
- tension (tendon organ)
- heavily myelinated
- contribute to reflexes and go to cerebellum

4

how does polyneuropathy present in a sensory exam?

stocking and glove

5

hemianesthesia indicates damage to...

spinal tracts, thalamus, cortex

6

what is brown-sequard syndrome?

hemisection of spinal cord affecting dorsal column/medial lemniscus sensory tracts and the corticospinal motor tracts

7

suspended or "vest like" loss of sensory function indicates

intramedullary lesion

8

dorsal great toe nerve root

L5

9

lateral heel nerve root

S1

10

below medial knee nerve root

L4

11

near thumb nerve root

C6

12

middle finger never root

C7

13

small digit nerve root

C8

14

in general, damage to single nerve roots....

does not cause sensory loss, due to overlap

15

where is the affected area in the brain when experiencing tactile agnosia

- sensory association area
- parietal lobe

16

motor function scale

1-5
1 - no contraction
2 - contraction but no movement
3 - movement but only barely against gravity
4 - movement against gravity and some resistance
5 - normal

17

two types of reflexes

- myotatic (deep tendon) - increased with upper motor neuron damage
- superficial - require upper motor neurons to be intact (normal plantar, cremaster, abdominal)

18

what does it mean when babinski is present?

- upgoing toes
- upper motor neuron damage

19

what is muscle spasticity? what does it indicate?

- does not give way
- upper motor neuron damage

20

what is muscle rigidity? what does it indicate?

- inflexibility or stiffness that gives way
- extrapyramidal dysfunction

21

what does muscle flaccidity indicate?

- lower motor neuron damage

22

muscle atrophy indicates

- lower motor neuron damage