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neuro 3 > study tool > Flashcards

study tool Flashcards

1
Q

true of false

the induction of sleep is passive due to arousal systems fatiguing

A

true

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2
Q

what is a sleep promoting area

A

midline brainstem

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3
Q

during a sleep study, during a 10 min period, about 60% of the waveforms recorded were high amplitude delta waves. what sleep stage is this

A

stage IV

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4
Q

in a sleep study, during a 10 minute period, the EEG became highly desynchronized along with a dramatic decrease in EMG activity in most muscles. what sleep state is this

A

REM

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5
Q

sleep factors, such as PGD2 and muramyl peptides, have hypnogenic effects by actin on what area

A

anterior hypothalamus

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6
Q

when traveling rapidly across 6 time zones, jet lag is worse when traveling in what direction

A

east

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7
Q

pontine geniculate occipital spikes (PGO) originate from which of the following

A

REM - ON cells

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8
Q

during REM sleep what happens to the ?heobase of motor neurons in the spinal cord

A

increase

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9
Q

when on awakens spontaneously from sleep, chances are they awaken out of which sleep stage

A

REM

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10
Q

what is associated with sleep deprivation and its link with obesity

A

decreased levels of GH

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11
Q

epileptogenic circuitry is characterized by what features

A

lowered threshold

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12
Q

stimulation of what CN may effectively abort a seizure

A

X

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13
Q

negative symptoms of Schizophrenia are associated with what

A

increased activity of mesocortical projections

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14
Q

persistent muscular tone during REM is characteristic of what

A

REM behavior disorder

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15
Q

what nutrient may be effective at treat in bipolar disorder and has similar damping effects on signal transduction as does lithium salts

A

omege 3 fatty acids

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16
Q

how does stimulation of GABA receptor hyperpolarize a neuron

A

increase membrane permeability to CL-

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17
Q

which of the following chromosomes is not associated with alzheimer’s disease

A

C10

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18
Q

increased activity of the sympathetic nervous system, associated with symptoms of fear is characteristic of what

A

panic attacks

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19
Q

excessive dopaminergic activity may be associated with what conditions

A

schizophreania

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20
Q

chronic low back pain and depression both have shown to cause what

A

shrinkage of the cerebral cortex

21
Q

in alzheimer’s disease extracellular plaques accumulate in the brain, which may dirrupt normal neuronal fuction. what is the main constituent of these plaques

A

amyloid

22
Q

what is the frequency of a normal cranial sacral rhythm

A

6 cycles/min

23
Q

which BBB

A

circumventricular organs

24
Q

how many times per day does the CSF turn over

A

3 times

25
Q

true or false

activation of the SNS can inhibit antibody production

A

true

26
Q

true or false

t cells are able to synthesize and release som anterior pituitary hormones

A

true

27
Q

what is not a function of the CSF

A

major source of glucose for brain

28
Q

what allows lymphocyctes to respond to neural signals

A

receptors in membrane that bind neuropeptides, biogenic amines

29
Q

what hormones can negate the pyrogenic effects of interleukin I

A

alpha MSH

30
Q

what can suppress macrophage activation and synthesis of antibodies by B cells

A

ACTH

31
Q

all of the following is decreased on spinal cord injury patients except which of the following

A

cortisol levels

32
Q

in chronic stress, what is not associated with immunosuppression

A

prolactin

33
Q

true or false

after PNS injury sensory axons can regenerate, but they are unable to re-innervate muscle spindles

A

false

34
Q

what substances are secreted by tissues/organs that provide ????? support ffor innervatin sympathetic neurons

A

nerve growth factors

35
Q

what can negat the high mortality rate in mice of combining immobilization stress and inoculation with the vaccinia virus

A

PM melatonin injections

36
Q

which of the following proteins is associated with synaptogenesis

A

MAP2

37
Q

which of the following is not associated with apoptosis

A

cell swelling

38
Q

in the CNS what is an inhibitor of axon outgrowth

A

myelin

39
Q

after injury, damage in the nervous system can be minimized by what strategies

A

increased activity of GABA receptors

40
Q

focal hand dystonia is due to what

A

cortical somatosensory representation of affected digits fused

41
Q

true of false the cerebral cortex has the capacity to reorganize itself in the face of reduced or enhanced afferent input

A

true

42
Q

in an sdult, the cerebral cortex retains the capacity to reorganize itself to the greatest extent, in response to what

A

afferent input

43
Q

in neonatal mice thymectomy causes degeneration of with what

A

anterior potuitary

44
Q

in old mice what hormone resorted thymic capacity to produce thymulin

A

L-thyroxin

45
Q

true or false

the neuroendocrine system’s major influence on the immune system concerns immunologic specificity

A

true

46
Q

in someone predisposed, what will preciptate a panic attack

A

inhaloation of CO2

47
Q

in spinal cord injury what happens to immunorespiveness

A

decreased

48
Q

eletroconvulsive therapy, sometime used to treat depression, has what side effect

A

memory loss

49
Q

what is a disease off neural connectivity caused by multiple factors (hits) that affect brain development

A

epilepsy

neuro 3 (2 decks)

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