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Quiz 1d

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Week 09-11
Stephanie Moore
Quiz by Stephanie Moore, updated more than 1 year ago
Stephanie Moore
Created by Stephanie Moore over 5 years ago
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Resource summary

Question 1

Question
A neuromuscular junction is a synapse:
Answer
  • Where a sensory axon delivering information from a muscle meets a neuron
  • Where a motor neuron axon meets a muscle fibre
  • Specific to cardiac muscles
  • Where a muscle excites or inhibits a neuron

Question 2

Question
A person's circadian activity cycle would most likely drift out of phase with the activity of other people if the person:
Answer
  • Lives near the equator, where the seasons do not vary
  • Spends a period of time in seclusion, away from sunlight
  • Habitually eats a big meal just before bedtime
  • Spends a period of time in the wilderness, away from clocks

Question 3

Question
A proprioceptor is sensitive to the:
Answer
  • Degree of relaxation or concentration of smooth muscle tissue
  • Position and movement of a part of the body
  • Percentage of fibres that are contracting within a muscle bundle
  • Degree of fatigue in a muscle

Question 4

Question
According to the activation-synthesis hypothesis, what do dreams reflect?
Answer
  • An imbalance among hormone levels
  • Unconscious motivations and emotions
  • Experiences that have been part of the species' evolutionary history
  • The brain's attempt to make sense of spontaneous neural activity

Question 5

Question
After entering stage 4 for the first time each evening, the sleeper typically ____.
Answer
  • Enters REM
  • Wakes up
  • Cycles back through stages 3 and 2
  • Returns immediately to stage 1

Question 6

Question
If a hamster in its home territory attacks an intruder, what will the hamster do if a second intruder arrives shortly after the first intruder leaves?
Answer
  • Play with the second intruder
  • Attack the second intruder but less vigorously than the first
  • Withdraw from the second intruder
  • Attack the second intruder quickly and vigorously

Question 7

Question
The term "serotonin turnover" refers to the amount of serotonin that is:
Answer
  • currently present in the brain
  • released at synapses and resynthesised
  • converted into another transmitter
  • radioactively labelled

Question 8

Question
During sleep, what happens in the brain?
Answer
  • Decreased firing by dopamine neurons
  • Increased firing in the frontal lobe
  • Increased firing in the parietal lobe
  • Increased firing by GABA neurons

Question 9

Question
In Parkinson's disease, which pathway in the brain degenerates?
Answer
  • Basal ganglia to cerebellum
  • Substantia nigra to caudate nucleus and putamen
  • Cerebellum to spinal cord
  • Cerebral cortex to spinal cord

Question 10

Question
In people with posttraumatic stress disorder (PTSD), the startle response is ___.
Answer
  • the same as in other people
  • generally stronger than in other people
  • generally absent
  • generally weaker than in other people

Question 11

Question
In the absence of any light, dark, or time cues, human circadian rhythms would:
Answer
  • Cease to exist
  • Become slightly longer than 24 hours
  • Become exactly 24 hours
  • Become much shorter than 24 hours

Question 12

Question
One of the main differences between natural killer cells and T cells is that natural killer cells:
Answer
  • are cancer cells
  • are more specific in their targets
  • attack several kinds of intruders
  • attack normal tissue

Question 13

Question
Looking at a picture of people showing emotional expressions causes the greatest activity in the:
Answer
  • Frontal lobe
  • Hippocampus
  • Fornix
  • Amygdala

Question 14

Question
Movements near the midline of the body, such as bending and turning of the trunk, are controlled by which motor system?
Answer
  • Medial tract
  • Hippocampal
  • Supplementary
  • Dorsolateral tract

Question 15

Question
One explanation for narcolepsy in humans is:
Answer
  • Excessive alcohol use
  • Damage to the locus coeruleus
  • A genetic loss of basal forebrain neurons
  • A loss of orexin-containing neurons in the hypothalamus

Question 16

Question
What is a common symptom of Huntington's disease?
Answer
  • Twitches, tremors, and writhing that interfere with voluntary movement
  • Loss of both sensation and motor control in certain limbs
  • Rapid fatigue of the muscles
  • Impairment of saccadic eye movements and rapid alternating movements

Question 17

Question
Paths from the cerebral cortex to the spinal cord are called the ____.
Answer
  • dorsospinal tracts
  • pyramidalspinal tracts
  • horizontalspinal tracts
  • corticospinal tracts

Question 18

Question
What is paradoxical about paradoxical/REM sleep?
Answer
  • It is associated with dreaming although brain activity is low
  • It has restorative functions, and yet the boyd has no apparent need for it
  • It is light sleep in some ways and deep sleep in other ways
  • It depends on serotonin for its onset and acetylcholine for its offset

Question 19

Question
Speaking, piano playing, athletic skills, and other rapid movements would be most impaired by damage to which structure?
Answer
  • Ventromedial hypothalamus
  • Reticular formation
  • Parasympathetic nervous system
  • Cerebellum

Question 20

Question
The Behavioral Activation System is associated with:
Answer
  • Lack of arousal, decreased action, and pleasant mood
  • Increased attention and arousal, decreased action, and fear or disgust
  • Low to moderate arousal, tendency to approach new objects, and pleasant mood
  • Maximum arousal, increased fear, and negative mood

Question 21

Question
The amygdala is part of the __.
Answer
  • pyramidal system
  • sympathetic nervous system
  • parasympathetic nervous system
  • limbic system

Question 22

Question
The branch of the autonomic nervous system that is responsible for preparing the body for intense, vigorous, emergency activity is the
Answer
  • sympathetic nervous system
  • craniosacral nervous system
  • parasympathetic nervous system
  • somatic nervous system

Question 23

Question
Muscle spindles respond to changes in muscle __; Golgi tendon organs respond to changes in muscle __.
Answer
  • tension; fatigue
  • fatigue; tension
  • stretch; tension
  • tension; stretch

Question 24

Question
The suprachiasmatic nucleus is found in the ____.
Answer
  • Thalamus
  • Caudate nucleus
  • Substantia nigra
  • Hypothalamus

Question 25

Question
Watching another person shoot a basketball is most likely to activate __ neurons in the brain of the person who is watching.
Answer
  • Spinal cord
  • Primary motor cortex
  • Ganglion
  • Mirror

Question 26

Question
Parkinson's disease is caused by degeneration of a pathway of neurons that releases which neurotransmitter?
Answer
  • Serotonin
  • Dopamine
  • Acetylcholine
  • Substance P

Question 27

Question
Which of the following events would most likely activate the locus coeruleus?
Answer
  • Hearing a bear growl in the woods
  • Walking
  • Taking a nap
  • Daydreaming

Question 28

Question
Which of the following is NOT common in people with Parkinson’s disease?
Answer
  • Slowness of movements
  • Rigidity and tremors
  • Outbursts of emotion
  • Difficulty initiating voluntary movements

Question 29

Question
Which of the following is an example of a motor program in a human?
Answer
  • Yawning
  • A teenager learning to drive
  • A baby's first steps
  • Making a list of things to do today

Question 30

Question
With each succeeding stage of sleep (from 1 to 4):
Answer
  • Slow, large-amplitude waves increase in number
  • Breathing and heart rates increase
  • Brain activity increases
  • Brain waves become smaller
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