Transcript Jeopardy - HCC Learning Web

Chapter 15 – Neural Integration I: Sensory Pathways and the
Somatic Nervous System
Sensory
Receptors I
Sensory
Receptors II
What’s Your
Perception?
Information
Superhighway
Stop and Ask
for Directions
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FINAL ROUND
Topic 1: Sensory Receptors I
$100 Question
Receptor A has a circular receptive field with a diameter
of 2.5 cm. Receptor B has a circular receptive field of 7.0
cm in diameter. Which receptor allows you to more
precisely localize a stimulus?
a. Receptor A
b. They would provide the same precision of
sensory information.
c. Receptor B
d. It would depend on the location of the receptors.
ANSWER
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Topic 1: Sensory Receptors I
$100 Answer
Receptor A has a circular receptive field with a diameter
of 2.5 cm. Receptor B has a circular receptive field of 7.0
cm in diameter. Which receptor allows you to more
precisely localize a stimulus?
a. Receptor A
b. They would provide the same precision of
sensory information.
c. Receptor B
d. It would depend on the location of the receptors.
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Topic 1: Sensory Receptors I
$200 Question
Nociceptors are _______. They are sensitive to ______.
a. thermoreceptors; extremes of temperature and
changes in vibration
b. pain receptors; extremes of temperature,
mechanical damage, and chemicals released
from injured cells
c. pain receptors; changes in pressure or stretch in
muscles
d. chemoreceptors; changes in concentration of
chemicals or compounds
ANSWER
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Topic 1: Sensory Receptors I
$200 Answer
Nociceptors are _______. They are sensitive to ______.
a. thermoreceptors; extremes of temperature and
changes in vibration
b. pain receptors; extremes of temperature,
mechanical damage, and chemicals released
from injured cells
c. pain receptors; changes in pressure or stretch in
muscles
d. chemoreceptors; changes in concentration of
chemicals or compounds
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Topic 1: Sensory Receptors I
$300 Question
Distinguishing facts concerning tonic receptors include
all of the following EXCEPT:
a. Tonic receptors are always active.
b. The frequency of action potential generation
indicates the background level of stimulation.
c. Tonic receptors are active for a short time
whenever a change occurs in conditions
monitored.
d. When a stimulus increases or decreases the
rate of action potential generation
ANSWER
changes.
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Topic 1: Sensory Receptors I
$300 Answer
Distinguishing facts concerning tonic receptors include
all of the following EXCEPT:
a. Tonic receptors are always active.
b. The frequency of action potential generation
indicates the background level of stimulation.
c. Tonic receptors are active for a short time
whenever a change occurs in conditions
monitored.
d. When a stimulus increases or decreases the
rate of action potential generation
changes.
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Topic 1: Sensory Receptors I
$400 Question
Which of the following is incorrect concerning
chemoreceptors?
a. They are located in the fourth ventricle of the
brain and so we are not consciously aware of
the sensations they provide.
b. Chemoreceptive neurons are located in
the carotid bodies and aortic bodies.
c. Chemoreceptors monitor the levels of respiratory
gases in blood and CSF.
d. None of the above statements
are incorrect.
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ANSWER
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Topic 1: Sensory Receptors I
$400 Answer
Which of the following is incorrect concerning
chemoreceptors?
a. They are located in the fourth ventricle of the
brain and so we are not consciously aware of
the sensations they provide.
b. Chemoreceptive neurons are located in
the carotid bodies and aortic bodies.
c. Chemoreceptors monitor the levels of respiratory
gases in blood and CSF.
d. None of the above statements
are incorrect.
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Topic 1: Sensory Receptors I
$500 Question
Which type of tactile receptor gives you the most
information about location size and shape of the
source of stimulation?
a. root hair plexus
b. free nerve ending
c. tactile (Merkel’s) disc
d. lamellated (Pacinian) corpuscle
ANSWER
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Topic 1: Sensory Receptors I
$500 Answer
Which type of tactile receptor gives you the most
information about location size and shape of the
source of stimulation?
a. root hair plexus
b. free nerve ending
c. tactile (Merkel’s) disc
d. lamellated (Pacinian) corpuscle
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Topic 2: Sensory Receptors II
$100 Question
Which type of general sensory receptor is correctly
paired with its function?
a. mechanoreceptors: detect changes in
temperature
b. chemoreceptors: sensitive to stimuli that distort
their cell membranes
c. thermoreceptors: detect changes in
concentration of specific chemicals or
compounds
d. none of the above
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ANSWER
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Topic 2: Sensory Receptors II
$100 Answer
Which type of general sensory receptor is correctly
paired with its function?
a. mechanoreceptors: detect changes in
temperature
b. chemoreceptors: sensitive to stimuli that distort
their cell membranes
c. thermoreceptors: detect changes in
concentration of specific chemicals or
compounds
d. none of the above
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Topic 2: Sensory Receptors II
$200 Question
What type of fibers carry information about
itch and tickle sensations?
a. unmyelinated Type C fibers
b. myelinated Type A fibers
c. all nociceptors
d. none of the above
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ANSWER
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Topic 2: Sensory Receptors II
$200 Answer
What type of fibers carry information about
itch and tickle sensations?
a. unmyelinated Type C fibers
b. myelinated Type A fibers
c. all nociceptors
d. none of the above
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Topic 2: Sensory Receptors II
$300 Question
Baroreceptors are located in ______ and
detect changes in ______.
a. blood vessels; respiratory gases
b. respiratory tract; respiratory gases
c. carotid bodies; pressure
d. digestive tract; pH
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ANSWER
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Topic 2: Sensory Receptors II
$300 Answer
Baroreceptors are located in ______ and
detect changes in ______.
a. blood vessels; respiratory gases
b. respiratory tract; respiratory gases
c. carotid bodies; pressure
d. digestive tract; pH
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Topic 2: Sensory Receptors II
$400 Question
What would happen if the information from
proprioceptors in your legs was blocked from
reaching the CNS?
a. You would not experience pain
sensations from your legs.
b. Your lower limb movements would be
uncoordinated.
c. You wouldn’t know position or degree of
stretch in tendons of your legs.
d. B and C are correct.
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ANSWER
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Topic 2: Sensory Receptors II
$400 Answer
What would happen if the information from
proprioceptors in your legs was blocked from
reaching the CNS?
a. You would not experience pain
sensations from your legs.
b. Your lower limb movements would be
uncoordinated.
c. You wouldn’t know position or degree of
stretch in tendons of your legs.
d. B and C are correct.
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Topic 2: Sensory Receptors II
$500 Question
Someone is gently brushing your arm with
a feather. Which type of receptor is
stimulated?
a. tactile (Meissner’s) corpuscles
b. tactile (Merkel’s) discs
c. root hair plexuses
d. all of the above
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ANSWER
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Topic 2: Sensory Receptors II
$500 Answer
Someone is gently brushing your arm with
a feather. Which type of receptor is
stimulated?
a. tactile (Meissner’s) corpuscles
b. tactile (Merkel’s) discs
c. root hair plexuses
d. all of the above
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Topic 3: What’s Your Perception?
$100 Question
A patient who describes their pain as
“prickling” is experiencing pain sensations
carried by ______.
a. substance P
b. unmyelinated Type C fibers
c. glutamate
d. myelinated Type A fibers
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ANSWER
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Topic 3: What’s Your Perception?
$100 Answer
A patient who describes their pain as
“prickling” is experiencing pain sensations
carried by ______.
a. substance P
b. unmyelinated Type C fibers
c. glutamate
d. myelinated Type A fibers
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Topic 3: What’s Your Perception?
$200 Question
The cerebellum monitors proprioceptive
information for which two senses?
a. vision and hearing
b. hearing and postural information
c. taste and smell
d. vestibular and visual
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ANSWER
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Topic 3: What’s Your Perception?
$200 Answer
The cerebellum monitors proprioceptive
information for which two senses?
a. vision and hearing
b. hearing and postural information
c. taste and smell
d. vestibular and visual
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Topic 3: What’s Your Perception?
$300 Question
If a sensation is to reach your conscious
awareness, there must be a synapse with a
_____ in the _____.
a. first-order neuron; thalamus
b. second-order neuron; primary sensory
cortex
c. first-order neuron; dorsal root ganglion
d. third-order neuron; thalamus
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ANSWER
BACK TO GAME
Topic 3: What’s Your Perception?
$300 Answer
If a sensation is to reach your conscious
awareness, there must be a synapse with a
_____ in the _____.
a. first-order neuron; thalamus
b. second-order neuron; primary sensory
cortex
c. first-order neuron; dorsal root ganglion
d. third-order neuron; thalamus
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Topic 3: What’s Your Perception?
$400 Question
Which of the following has occurred if you
no longer notice the smell of a dirty cat
litter box?
a. peripheral adaptation
b. anosmia
c. sensory coding
d. central adaptation
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ANSWER
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Topic 3: What’s Your Perception?
$400 Answer
Which of the following has occurred if you
no longer notice the smell of a dirty cat
litter box?
a. peripheral adaptation
b. anosmia
c. sensory coding
d. central adaptation
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Topic 3: What’s Your Perception?
$500 Question
If transduction does not occur, what do you
perceive about a stimulus?
a. It is stronger than usual.
b. It is as though the stimulus did not take
place and you feel nothing.
c. UV light was not converted into part of
the visible spectrum.
d. It is weaker than usual.
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ANSWER
BACK TO GAME
Topic 3: What’s Your Perception?
$500 Answer
If transduction does not occur, what do you
perceive about a stimulus?
a. It is stronger than usual.
b. It is as though the stimulus did not take
place and you feel nothing.
c. UV light was not converted into part of
the visible spectrum.
d. It is weaker than usual.
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Topic 4: Information Superhighway
$100 Question
As a result of pressure on her spinal cord, Jill
cannot feel touch or pressure on her lower limbs.
Which spinal tract is being compressed?
a. fasciculus cuneatus
b. fasciculus gracilis
c. lateral spinothalamic tract
d. anterior spinothalamic tract
ANSWER
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Topic 4: Information Superhighway
$100 Answer
As a result of pressure on her spinal cord, Jill
cannot feel touch or pressure on her lower limbs.
Which spinal tract is being compressed?
a. fasciculus cuneatus
b. fasciculus gracilis
c. lateral spinothalamic tract
d. anterior spinothalamic tract
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Topic 4: Information Superhighway
$200 Question
Which of the following motor pathways
remains uncrossed along its length?
a. vestibulospinal tract
b. tectospinal tract
c. anterior corticospinal tract
d. lateral corticospinal tract
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ANSWER
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Topic 4: Information Superhighway
$200 Answer
Which of the following motor pathways
remains uncrossed along its length?
a. vestibulospinal tract
b. tectospinal tract
c. anterior corticospinal tract
d. lateral corticospinal tract
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Topic 4: Information Superhighway
$300 Question
Which spinal tract carries action potentials
generated by nociceptors?
a. fasciculus cuneatus
b. fasciculus gracilis
c. lateral spinothalamic tract
d. anterior spinothalamic tract
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ANSWER
BACK TO GAME
Topic 4: Information Superhighway
$300 Answer
Which spinal tract carries action potentials
generated by nociceptors?
a. fasciculus cuneatus
b. fasciculus gracilis
c. lateral spinothalamic tract
d. anterior spinothalamic tract
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Topic 4: Information Superhighway
$400 Question
The _____ carries sensation of highly localized (fine)
touch, while the _____ provides conscious sensations of
poorly localized (crude) touch.
a. posterior column pathway; anterior
spinothalamic tract
b. fasciculus gracilis; fasciculus cuneatus
c. spinocerebellar pathway; lateral spinothalamic
tract
d. spinothalamic pathway; spinocerebellar pathway
ANSWER
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Topic 4: Information Superhighway
$400 Answer
The _____ carries sensation of highly localized (fine)
touch, while the _____ provides conscious sensations of
poorly localized (crude) touch.
a. posterior column pathway; anterior
spinothalamic tract
b. fasciculus gracilis; fasciculus cuneatus
c. spinocerebellar pathway; lateral spinothalamic
tract
d. spinothalamic pathway; spinocerebellar pathway
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Topic 4: Information Superhighway
$500 Question
What is unusual about the posterior spinocerebellar
tracts when compared with other ascending pathways?
a. The decussation of axons in the medulla
innervate motor neurons on the opposite side
of the body.
b. Axons enter the posterior spinothalamic tract on
the same side of the body.
c. They are the only tracts to carry information
about referred pain.
d. They carry information along visceral
sensory pathways.
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ANSWER
BACK TO GAME
Topic 4: Information Superhighway
$500 Answer
What is unusual about the posterior spinocerebellar
tracts when compared with other ascending pathways?
a. The decussation of axons in the medulla
innervate motor neurons on the opposite side
of the body.
b. Axons enter the posterior spinothalamic tract on
the same side of the body.
c. They are the only tracts to carry information
about referred pain.
d. They carry information along visceral
sensory pathways.
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Topic 5: Stop and Ask for Directions
$100 Question
An injury involving the superior portion of
the motor cortex affects which region of
the body?
a. upper portion of the lower limb
b. upper limb
c. lower leg and foot
d. both A and B
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ANSWER
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Topic 5: Stop and Ask for Directions
$100 Answer
An injury involving the superior portion of
the motor cortex affects which region of
the body?
a. upper portion of the lower limb
b. upper limb
c. lower leg and foot
d. both A and B
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Topic 5: Stop and Ask for Directions
$200 Question
For what anatomical reason does the left side of
the brain control motor function on the right side
of the body?
a. Motor function is controlled by a system
of two neurons.
b. Motor function is controlled by cranial
reflexes.
c. The motor area devoted to a particular
area becomes larger.
ANSWER
d. decussation of axons
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Topic 5: Stop and Ask for Directions
$200 Answer
For what anatomical reason does the left side of
the brain control motor function on the right side
of the body?
a. Motor function is controlled by a system
of two neurons.
b. Motor function is controlled by cranial
reflexes.
c. The motor area devoted to a particular
area becomes larger.
d. decussation of axons
© 2012 Pearson Education, Inc.
BACK TO GAME
Topic 5: Stop and Ask for Directions :
$300 Question
Parkinson’s disease manifests which of the following
abnormalities?
a. The motor cortex ceases receiving messages
from sensory neurons.
b. Excitatory neurons in the basal nuclei become
more active, leading to faulty control of
voluntary movements.
c. Axons that synapse in the thalamus no longer
convey messages to the motor cortex.
d. GABA is released by neurons in excessive
ANSWER
amounts.
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Topic 5: Stop and Ask for Directions
$300 Answer
Parkinson’s disease manifests which of the following
abnormalities?
a. The motor cortex ceases receiving messages
from sensory neurons.
b. Excitatory neurons in the basal nuclei become
more active, leading to faulty control of
voluntary movements.
c. Axons that synapse in the thalamus no longer
convey messages to the motor cortex.
d. GABA is released by neurons in excessive
amounts.
© 2012 Pearson Education, Inc.
BACK TO GAME
Topic 5: Stop and Ask for Directions
$400 Question
Why does the motor homunculus depict the hands, face,
and tongue hugely out of proportion?
a. The brain area devoted to using those regions is
vast.
b. More motor units are needed for fine control of
those areas.
c. The cortical areas mapped for controlling those
areas overlap with the sensory regions
controlling those areas.
d. A and C are correct.
© 2012 Pearson Education, Inc.
ANSWER
BACK TO GAME
Topic 5: Stop and Ask for Directions
$400 Answer
Why does the motor homunculus depict the hands, face,
and tongue hugely out of proportion?
a. The brain area devoted to using those regions is
vast.
b. More motor units are needed for fine control of
those areas.
c. The cortical areas mapped for controlling those
areas overlap with the sensory regions
controlling those areas.
d. A and C are correct.
© 2012 Pearson Education, Inc.
BACK TO GAME
Topic 5: Stop and Ask for Directions
$500 Question
The medial pathway controls ____, whereas the lateral
pathway controls _____.
a. gross movements of the trunk and proximal limb
muscles; distal limb muscles and precise
movement
b. background patterns of movement; motor
impulses from the cerebrum to the spinal cord
c. subconscious control of balance and muscle
tone; subconscious control of reflex activity
d. none of the above
© 2012 Pearson Education, Inc.
ANSWER
BACK TO GAME
Topic 5: Stop and Ask for Directions
$500 Answer
The medial pathway controls ____, whereas the lateral
pathway controls _____.
a. gross movements of the trunk and proximal limb
muscles; distal limb muscles and precise
movement
b. background patterns of movement; motor
impulses from the cerebrum to the spinal cord
c. subconscious control of balance and muscle
tone; subconscious control of reflex activity
d. none of the above
© 2012 Pearson Education, Inc.
BACK TO GAME
FINAL ROUND Question
Why is cerebellar control over well-practiced
movements, such as swinging a baseball bat, important?
a. Voluntary movements begin with activation of far
fewer motor units than necessary.
b. Concentrating on voluntary control using the
motor cortex disrupts the pattern and rhythm.
c. Patterns of movement are unchanging.
d. Both A and B are correct.
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ANSWER
BACK TO GAME
FINAL ROUND Answer
Why is cerebellar control over well-practiced
movements, such as swinging a baseball bat, important?
a. Voluntary movements begin with activation of far
fewer motor units than necessary.
b. Concentrating on voluntary control using the
motor cortex disrupts the pattern and rhythm.
c. Patterns of movement are unchanging.
d. Both A and B are correct.
© 2012 Pearson Education, Inc.
BACK TO GAME