neurological Flashcards

(66 cards)

1
Q

CNS includes

A

Central nervous system (CNS), which includes brain and spinal cord

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2
Q

Peripheral nervous system

A

which includes all nerve fibers outside brain and spinal cord, Includes 12 pairs of cranial nerves, 31 pairs of spinal nerves, and all their branches

Carries sensory (afferent) messages to CNS from sensory receptors

Motor (efferent) messages from CNS to muscles and glands, as well as autonomic messages that govern internal organs and blood vessels

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3
Q

cerebral cortex

A

cortex is cerebrum’s outer layer of nerve cells

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4
Q

Cerebral cortex is

A

center of functions governing thought, memory, reasoning, sensation, and voluntary

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5
Q

Temporal lobe

A

primary auditory reception center,

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6
Q

Parietal lobe’

A

postcentral gyrus is primary center for sensation, taste and smell

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7
Q

Occipital lobe

A

visual receptor center

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8
Q

Wernicke’s area

A

temporal lobe associated with language comprehension( understanding speech)

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9
Q

Broca’s area

A

in frontal lobe mediates motor speech

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10
Q

basal ganglia

A

Gray matter in two cerebral hemispheres that form subcortical associated motor system

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11
Q

Thalamus

A

Main relay station where sensory pathways of spinal cord, cerebellum, and brainstem form synapses( traffic police organizing everything)

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12
Q

Hypothalamus

A

Major respiratory center with basic function control and coordination

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13
Q

Cerebellum

A

Concerned with motor coordination and muscle tone of voluntary movements

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14
Q

Brainstem

A

Central core of the brain—contains midbrain, pons and medulla

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15
Q

Spinal cord

A

Main pathway for ascending and descending fiber tracts that connect brain to spinal nerves( highways )

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16
Q

if left side of the body has paralysis, which side will this be seen

A

Left cerebral cortex receives sensory information from and controls motor function to right side of the body.
Right cerebral cortex likewise interacts with left side of body

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17
Q

upper motor neurons

A

terminate at the spinal cord

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18
Q

Extrapyramidal tracts include

A

Motor nerve fibers travel to brainstem crossing to opposite, contralateral side, (pyramidal decussation) and then pass down in lateral column of spinal cord.

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19
Q

Corticospinal or pyramidal tract

A

subcortical motor fibers that maintain muscle tone and control body movements, especially gross automatic movements, such as walking.

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20
Q

Cerebellar system

A

Coordinates movement, maintains equilibrium and posture
Receives information on position of muscles and joints, body’s equilibrium, and kind of motor messages sent from cortex to muscles

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21
Q

stroke patients we will see

A

stiff muscles

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22
Q

roughting reflex

A
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23
Q

reflex

A

: basic defense mechanisms of nervous system

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24
Q

cranial nerves

A

12 pairs

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25
spinal nerves
31 pairs of spinal nerves arise from length of spinal cord and supply rest of body
26
shingles
dermatomes , will follow a specific place and track based on which spinal nerve is involved
27
saddle anesthesia
damage to S1and s2
28
lumbar and saccral dermatomes
29
Autonomic fibers innervate
smooth (involuntary) muscles, cardiac muscle, and glands.
30
headache, dizziness vertigo
31
neurologic recheck examination
on persons with demonstrated neurologic deficits who require periodic assessments.
32
squueze with your hand and push and pulls
33
bicep , patellatr tendon, verbalize babinski
34
Myoclonus refers
quick, involuntary muscle jerk
35
Chorea:
neurological disorder characterized by jerky involuntary movements affecting especially the shoulders, hips, and face
36
Romberg sign
Demonstrates normal position sense, muscle strength, and cerebellar function Positive Romberg sign indicates loss of balance
37
Gait:
: observe as the person walks 10 to 20 feet, turns, and returns to starting point
38
Tactile discrimination
tests also measure discrimination ability of sensory cortex.
39
Graphesthesia:
ability to “read” a number by having it traced on skin
40
Two-point discrimination:
test ability to distinguish separation of two simultaneous pin points on skin
41
Point location
touch skin and withdraw stimulus promptly; ask the person to put finger where you touched
42
DTR measurement
Measurement of stretch reflexes reveals intactness of reflex arc at specific spinal levels Limb should be relaxed and muscle partially stretched.
43
Reflex response graded on 4-point scale
4 = very brisk, hyperactive with clonus, indicative of disease 3 = brisker than average, may indicate disease 2 = Average, normal 1 = diminished, low normal, or occurs with reinforcement 0 = no response
44
Clonus:
test when reflexes hyperactive Sustained clonus is associated with UMN disease.
45
Cremasteric reflex
L1 to L2 On male, lightly stroke inner aspect of thigh with reflex hammer or tongue blade
46
babinski negative
toes curl down ( normal ), infants have a positive babinski ( flaire their toes
47
Plantar reflex
L4 to S2
48
posturing
49
adduction
coiming into the corre
50
abduction
arms away from the body
51
decorticate posturing
52
glasgow less than 8
we intubate
53
cogwheel
argument in dopamine levels
54
Fasciculations
Rapid, continuous twitching of resting muscle
55
Tic
Involuntary, compulsive, repetitive twitching of a muscle group)
56
Athetosis
Slow, twisting, continuous movement, resembling a snake or worm)
57
resting tremour,
usually parkinsons
58
Intention tremor
59
Spinal cord hemisection
Brown-Séquard syndrome Loss of pain and temperature, contralateral side, loss of vibration and position discrimination on ipsilateral side
60
spinal cord injuries
what happens ?
61
Decerebrate rigidity
62
Decorticate rigidity
Upper extremities Flexion of arm, wrist, and fingers Adduction of arm: tight against thorax
63
Kernig’s
In flat-lying supine position, flex thigh on abdomen and extend knee.
64
Brudzinski
With one hand under neck and other hand on person's chest, sharply flex chin on chest and watch hips and knees.
65
head and neck involved
meningitis
66