PYC4813 LATEST EXAM
PACK 2025
QUESTIONS AND ANSWERS
FOR ASSISTANCE CONTACT
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, lOMoARcPSD|31863004
Pons are responsible for transmitting sensory information and motor impulses. When
someone wakes up from REM, cells in the pons [[1]] to enable motor control.
a.
Accelerates
b.
Slows down
c.
Shut off
d.
Freezes
Feedback
Your answer is correct.
Cells in the pons shut off consequently enabling motor control.
The correct answer is:
Shut off
Question2
Correct
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Question text
What explains the behavior of most migrating birds flying only at night?
a.
The nights are cooler and prevent the birds from overheating
b.
The nights are dark which improves the vision of migrating birds
c.
The daylight is harsh and interferes with the circadian rhythms of migrating birds
d.
The daylight is harsh and interferes with the vision of migrating birds
Feedback
Your answer is correct.
The nights are cooler and prevents the birds from overheating.
The correct answer is:
, lOMoARcPSD|31863004
The nights are cooler and prevent the birds from overheating
Question3
Correct
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Question text
Carbachol binds and activates acetylcholine receptors and produces constriction of the
iris and ciliary body resulting in reduction in intraocular pressure. When injected with
carbachol, a person is likely to enter [[1]] sleep much faster.
a.
Slow-wave
b.
Stage 1 sleep
c.
None of the options provided are correct
d.
REM
Feedback
Your answer is correct.
A person is likely to enter REM sleep much faster.
The correct answer is:
REM
Question4
Correct
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Question text
Which statement(s) is and/or are correct regarding the function of temperature in
wakefulness and sleep patterns?
a.
The bodily temperature declines when falling asleep and rises when waking up.
b.
The bodily temperature rises when falling asleep and declines when waking up.
c.
, lOMoARcPSD|31863004
The bodily temperature is not affected during wakefulness and sleep
d.
None of the options provided
Feedback
Your answer is correct.
The bodily temperature declines when falling asleep and rises when waking up.
The correct answer is:
The bodily temperature declines when falling asleep and rises when waking up.
Question5
Correct
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Question text
Which statement(s) is and/or are incorrect regarding homeostasis [[1]]?
a.
The fluctuations in body temperature is not affected by time of day
b.
The body temperature is higher in mid-afternoon than it is mid-night
c.
The changes in set point don’t fully account for many observations
d.
The body does not maintain complete consistency in the process of temperature
regulation
Feedback
Your answer is correct.
The fluctuations in body temperature is not affected by time of day.
PACK 2025
QUESTIONS AND ANSWERS
FOR ASSISTANCE CONTACT
Email:
, lOMoARcPSD|31863004
Pons are responsible for transmitting sensory information and motor impulses. When
someone wakes up from REM, cells in the pons [[1]] to enable motor control.
a.
Accelerates
b.
Slows down
c.
Shut off
d.
Freezes
Feedback
Your answer is correct.
Cells in the pons shut off consequently enabling motor control.
The correct answer is:
Shut off
Question2
Correct
Mark 1.00 out of 1.00
Flag question
Question text
What explains the behavior of most migrating birds flying only at night?
a.
The nights are cooler and prevent the birds from overheating
b.
The nights are dark which improves the vision of migrating birds
c.
The daylight is harsh and interferes with the circadian rhythms of migrating birds
d.
The daylight is harsh and interferes with the vision of migrating birds
Feedback
Your answer is correct.
The nights are cooler and prevents the birds from overheating.
The correct answer is:
, lOMoARcPSD|31863004
The nights are cooler and prevent the birds from overheating
Question3
Correct
Mark 1.00 out of 1.00
Flag question
Question text
Carbachol binds and activates acetylcholine receptors and produces constriction of the
iris and ciliary body resulting in reduction in intraocular pressure. When injected with
carbachol, a person is likely to enter [[1]] sleep much faster.
a.
Slow-wave
b.
Stage 1 sleep
c.
None of the options provided are correct
d.
REM
Feedback
Your answer is correct.
A person is likely to enter REM sleep much faster.
The correct answer is:
REM
Question4
Correct
Mark 1.00 out of 1.00
Flag question
Question text
Which statement(s) is and/or are correct regarding the function of temperature in
wakefulness and sleep patterns?
a.
The bodily temperature declines when falling asleep and rises when waking up.
b.
The bodily temperature rises when falling asleep and declines when waking up.
c.
, lOMoARcPSD|31863004
The bodily temperature is not affected during wakefulness and sleep
d.
None of the options provided
Feedback
Your answer is correct.
The bodily temperature declines when falling asleep and rises when waking up.
The correct answer is:
The bodily temperature declines when falling asleep and rises when waking up.
Question5
Correct
Mark 1.00 out of 1.00
Flag question
Question text
Which statement(s) is and/or are incorrect regarding homeostasis [[1]]?
a.
The fluctuations in body temperature is not affected by time of day
b.
The body temperature is higher in mid-afternoon than it is mid-night
c.
The changes in set point don’t fully account for many observations
d.
The body does not maintain complete consistency in the process of temperature
regulation
Feedback
Your answer is correct.
The fluctuations in body temperature is not affected by time of day.
