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Quiz 1d

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Week 09-11
Stephanie Moore
Quiz por Stephanie Moore, atualizado more than 1 year ago
Stephanie Moore
Criado por Stephanie Moore mais de 5 anos atrás
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Resumo de Recurso

Questão 1

Questão
A neuromuscular junction is a synapse:
Responda
  • 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

Questão 2

Questão
A person's circadian activity cycle would most likely drift out of phase with the activity of other people if the person:
Responda
  • 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

Questão 3

Questão
A proprioceptor is sensitive to the:
Responda
  • 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

Questão 4

Questão
According to the activation-synthesis hypothesis, what do dreams reflect?
Responda
  • 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

Questão 5

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

Questão 6

Questão
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?
Responda
  • 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

Questão 7

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

Questão 8

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

Questão 9

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

Questão 10

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

Questão 11

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

Questão 12

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

Questão 13

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

Questão 14

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

Questão 15

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

Questão 16

Questão
What is a common symptom of Huntington's disease?
Responda
  • 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

Questão 17

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

Questão 18

Questão
What is paradoxical about paradoxical/REM sleep?
Responda
  • 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

Questão 19

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

Questão 20

Questão
The Behavioral Activation System is associated with:
Responda
  • 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

Questão 21

Questão
The amygdala is part of the __.
Responda
  • pyramidal system
  • sympathetic nervous system
  • parasympathetic nervous system
  • limbic system

Questão 22

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

Questão 23

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

Questão 24

Questão
The suprachiasmatic nucleus is found in the ____.
Responda
  • Thalamus
  • Caudate nucleus
  • Substantia nigra
  • Hypothalamus

Questão 25

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

Questão 26

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

Questão 27

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

Questão 28

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

Questão 29

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

Questão 30

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

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