Ass 92 mcq Flashcards

1
Q

draw up step-by-step representation of sequence of events during impulse conduction. Which is correct order?

a. stimulus received by soma
b. resting membrane potential changes into action potential
c. refractory period during which the impulse is generated
d. neurotransmitters allow synaptic transmission of the impulse
e. postsynaptic potentials determine whether the next neuron will produce an action potential

  1. a,b,c,d,e
  2. a,b,d,e
  3. a,b,e,d,c
  4. a,c,b,d
A
  1. a,b,d,e
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2
Q

Stimulus intensity is to impulse frequency as…… is to the amplitude of the impulse

  1. conduction speed
  2. diameter of the nerve fibre
  3. light stimulus intensity
  4. height of the wave
A

diameter of the nerve fibre

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3
Q

what par of the neuron conducts information signals over a long distance?

  1. soma
  2. axon
  3. boutons
  4. cell bodies
A

axon

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4
Q

Examples of the neurotransmitters. which is NOT correct?

  1. curare causes paralysis because it functions as a antagonist which suppresses the action of acetylcholine
  2. high level of acetylcholine may explain deteriorating cognitive functions in Alzheimer’s disease
  3. Severe depression is associated with low levels of noradrenaline in the brain + manic condition is associated with very high levels
  4. High levels op dopamine are associated schizophrenia
A

high level of acetylcholine may explain deteriorating cognitive functions in Alzheimer’s disease

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5
Q

drugs have diff effects on the synaptic process. The effects are brought about because drugs….neurotransmitters.

  1. inhibit
  2. facilitate
  3. mimic
  4. all of above
A

all of above

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6
Q

what lope regulates voluntary movement such as moving a fork or spoon from the plate to the mouth + to use a map by synthesizing spatial co-ordinates

  1. frontal
  2. temporal
  3. parietal
  4. occipital
A

parietal

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7
Q

identify correct statement about sleep

  1. during sleep, people don’t respond to things happening around them
  2. dreaming occurs during the 4th stage of S-sleep
  3. the function of S-sleep is to allow bring to re-organise info + prevent overload
  4. sleep deprivation can lead to deterioration in cognitive functioning
A

sleep deprivation can lead to deterioration in cognitive functioning

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8
Q

cocaine is classified as a…

  1. stimulant
  2. depressant
  3. hallucinogen
  4. inhalant
A

stimulant

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9
Q

make a presentation on role of hippocampus in memory. a graphic representation will be helpful. what would be the best way to organise this info graphically?

  1. expandable tree structure showing structures of the central nervous system
  2. expandable tree structure showing structures involved in the memory process
  3. flowchart illustrating the memory process
  4. flow chat illustrating the central nervous system
A

flowchart illustrating the memory process

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10
Q

when u look at lines you tend to see them as three sets of two lines and one line, rather than random lines. which law of perceptual organisation accounts for this?
_______ _______ _____ ______
_______ _______ ______

  1. contour
  2. similarity
  3. closure
  4. proximity
A

proximity

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11
Q

left hemisphere of brain is mainly involved with…

  1. logical organisation + analysis of info + processing info sequentially
  2. processing info holistically + simultaneously
  3. creativity + creative thinking
  4. spatial / non verbal activities
A

logical organisation + analysis of info + processing info sequentially

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12
Q

the main function of the ….. is to co ordinate motor development

  1. pons
  2. medulla oblongata
  3. thalamus
  4. cerebellum
A

cerebullum

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13
Q

observational learning means that we learn…

  1. though u.standing, knowing + making use of mental processes
  2. by watching + imitating the behaviours of others + observing the consequences of those behaviours
  3. through interacting with other people in our social environment
  4. by operating on the environments + observing the consequences of those behaviours
A
  1. by watching + imitating the behaviours of others + observing the consequences of those behaviours
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14
Q

billy is daydreamers, doesn’t always make up bed, mother does it when he forgets, then he must do dishes. gets piece of fruit when he does, as his mother knows he likes fruit. this is an example of…

  1. operant conditioning
  2. classical conditioning
  3. discovery learning
  4. perceptual-motor learning
A

operant conditioning

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15
Q

which brainwaves characterize the wakefulness + relaxed state of the mind?

  1. delta waves
  2. alpha waves
  3. beta waves
  4. theta waves
A

alpha waves

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16
Q

to illustrate the process of synaptic transmission, is suggested to use flow chart. is this an appropriate way to illustrate synaptic transmission?

  1. no, a diagram should be used to represent the process
  2. yes, flow chart should provide detail of detailed info
  3. yes, flow chart should provide an overview of the process it illustrates
  4. yes, flow of info goes in one direction only
A
  1. yes, flow chart should provide an overview of the process it illustrates
17
Q

which term refers to the period whereby no impulse can be generates, even with intense stimulation?

  1. absolute refractory period
  2. action potential
  3. relative refractory period
  4. resting membrane potential
A

absolute refractory period

18
Q

which of following neurotransmitters helps to control aggression + eating?

  1. endorphin
  2. GABA
  3. Acetylcholine
  4. Dopamine
A

GABA

19
Q

damage to part of this love can hear words spoken, but spoken words have no meaning. This is…

  1. frontal lobe
  2. temporal lobe
  3. parietal lobe
  4. occipital lobe
A

temporal lobe

20
Q

in the parts of the hindbrain, the part that prevents brain from over stimulation + maintains an optimal arousal level for brain functioning is called…

  1. medulla oblongata
  2. cerebellum
  3. pons
  4. reticular formation
A

reticular formation

21
Q

(peripheral nervous system) The…….activates the body while the …… restores normal functioning.

  1. autonomic nervous system ; peripheral nervous system
  2. autonomic nervous system ; homeostasis
  3. sympathetic nervous system ; parasympathetic nervous system
  4. sympathetic nervous system ; somatic nervous system
A
  1. sympathetic nervous system ; parasympathetic nervous system