Stephanie Moore
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Week 09-11

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Stephanie Moore
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Quiz 1d

Question 1 of 30

1

A neuromuscular junction is a synapse:

Select one of the following:

  • 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

Explanation

Question 2 of 30

1

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

Select one of the following:

  • 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

Explanation

Question 3 of 30

1

A proprioceptor is sensitive to the:

Select one of the following:

  • 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

Explanation

Question 4 of 30

1

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

Select one of the following:

  • 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

Explanation

Question 5 of 30

1

After entering stage 4 for the first time each evening, the sleeper typically ____.

Select one of the following:

  • Enters REM

  • Wakes up

  • Cycles back through stages 3 and 2

  • Returns immediately to stage 1

Explanation

Question 6 of 30

1

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?

Select one of the following:

  • 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

Explanation

Question 7 of 30

1

The term "serotonin turnover" refers to the amount of serotonin that is:

Select one of the following:

  • currently present in the brain

  • released at synapses and resynthesised

  • converted into another transmitter

  • radioactively labelled

Explanation

Question 8 of 30

1

During sleep, what happens in the brain?

Select one of the following:

  • Decreased firing by dopamine neurons

  • Increased firing in the frontal lobe

  • Increased firing in the parietal lobe

  • Increased firing by GABA neurons

Explanation

Question 9 of 30

1

In Parkinson's disease, which pathway in the brain degenerates?

Select one of the following:

  • Basal ganglia to cerebellum

  • Substantia nigra to caudate nucleus and putamen

  • Cerebellum to spinal cord

  • Cerebral cortex to spinal cord

Explanation

Question 10 of 30

1

In people with posttraumatic stress disorder (PTSD), the startle response is ___.

Select one of the following:

  • the same as in other people

  • generally stronger than in other people

  • generally absent

  • generally weaker than in other people

Explanation

Question 11 of 30

1

In the absence of any light, dark, or time cues, human circadian rhythms would:

Select one of the following:

  • Cease to exist

  • Become slightly longer than 24 hours

  • Become exactly 24 hours

  • Become much shorter than 24 hours

Explanation

Question 12 of 30

1

One of the main differences between natural killer cells and T cells is that natural killer cells:

Select one of the following:

  • are cancer cells

  • are more specific in their targets

  • attack several kinds of intruders

  • attack normal tissue

Explanation

Question 13 of 30

1

Looking at a picture of people showing emotional expressions causes the greatest activity in the:

Select one of the following:

  • Frontal lobe

  • Hippocampus

  • Fornix

  • Amygdala

Explanation

Question 14 of 30

1

Movements near the midline of the body, such as bending and turning of the trunk, are controlled by which motor system?

Select one of the following:

  • Medial tract

  • Hippocampal

  • Supplementary

  • Dorsolateral tract

Explanation

Question 15 of 30

1

One explanation for narcolepsy in humans is:

Select one of the following:

  • Excessive alcohol use

  • Damage to the locus coeruleus

  • A genetic loss of basal forebrain neurons

  • A loss of orexin-containing neurons in the hypothalamus

Explanation

Question 16 of 30

1

What is a common symptom of Huntington's disease?

Select one of the following:

  • 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

Explanation

Question 17 of 30

1

Paths from the cerebral cortex to the spinal cord are called the ____.

Select one of the following:

  • dorsospinal tracts

  • pyramidalspinal tracts

  • horizontalspinal tracts

  • corticospinal tracts

Explanation

Question 18 of 30

1

What is paradoxical about paradoxical/REM sleep?

Select one of the following:

  • 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

Explanation

Question 19 of 30

1

Speaking, piano playing, athletic skills, and other rapid movements would be most impaired by damage to which structure?

Select one of the following:

  • Ventromedial hypothalamus

  • Reticular formation

  • Parasympathetic nervous system

  • Cerebellum

Explanation

Question 20 of 30

1

The Behavioral Activation System is associated with:

Select one of the following:

  • 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

Explanation

Question 21 of 30

1

The amygdala is part of the __.

Select one of the following:

  • pyramidal system

  • sympathetic nervous system

  • parasympathetic nervous system

  • limbic system

Explanation

Question 22 of 30

1

The branch of the autonomic nervous system that is responsible for preparing the body for intense, vigorous, emergency activity is the

Select one of the following:

  • sympathetic nervous system

  • craniosacral nervous system

  • parasympathetic nervous system

  • somatic nervous system

Explanation

Question 23 of 30

1

Muscle spindles respond to changes in muscle __; Golgi tendon organs respond to changes in muscle __.

Select one of the following:

  • tension; fatigue

  • fatigue; tension

  • stretch; tension

  • tension; stretch

Explanation

Question 24 of 30

1

The suprachiasmatic nucleus is found in the ____.

Select one of the following:

  • Thalamus

  • Caudate nucleus

  • Substantia nigra

  • Hypothalamus

Explanation

Question 25 of 30

1

Watching another person shoot a basketball is most likely to activate __ neurons in the brain of the person who is watching.

Select one of the following:

  • Spinal cord

  • Primary motor cortex

  • Ganglion

  • Mirror

Explanation

Question 26 of 30

1

Parkinson's disease is caused by degeneration of a pathway of neurons that releases which neurotransmitter?

Select one of the following:

  • Serotonin

  • Dopamine

  • Acetylcholine

  • Substance P

Explanation

Question 27 of 30

1

Which of the following events would most likely activate the locus coeruleus?

Select one of the following:

  • Hearing a bear growl in the woods

  • Walking

  • Taking a nap

  • Daydreaming

Explanation

Question 28 of 30

1

Which of the following is NOT common in people with Parkinson’s disease?

Select one of the following:

  • Slowness of movements

  • Rigidity and tremors

  • Outbursts of emotion

  • Difficulty initiating voluntary movements

Explanation

Question 29 of 30

1

Which of the following is an example of a motor program in a human?

Select one of the following:

  • Yawning

  • A teenager learning to drive

  • A baby's first steps

  • Making a list of things to do today

Explanation

Question 30 of 30

1

With each succeeding stage of sleep (from 1 to 4):

Select one of the following:

  • Slow, large-amplitude waves increase in number

  • Breathing and heart rates increase

  • Brain activity increases

  • Brain waves become smaller

Explanation

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