Question 1

Distinguish between adequate stimulus,threshold stimulus,and perceptual threshold.

Accepted Answer

An adequate stimulus is the form of ener

Question 2

As an object moves closer to the eye,the ciliary muscle ________ making the lens ________ in order to keep the object in focus.

Accepted Answer

contracts,

Question 3

The cilia of the hair cells of the semicircular canals are embedded in the

Accepted Answer

A)  saccule. 
B)  ampullae. 
C)  cristae. 
D)  utricle. 
E)  cupula. 
A)  saccule. 
B)  ampullae. 
C)  cristae. 
D)  utricle. 
E)  cupula.

Question 4

Put these structures of the visual system in the order that they transmit visual information from the retina.
1)optic disk
2)visual cortex of the occipital lobe
3)optic chiasm
4)lateral geniculate body of the thalamus

Accepted Answer

A)  3, 1, 2, 4 
B)  3, 1, 4, 2 
C)  1, 3, 4, 2 
D)  1, 3, 2, 4 
E)  1, 2, 3, 4 
A)  3, 1, 2, 4 
B)  3, 1, 4, 2 
C)  1, 3, 4, 2 
D)  1, 3, 2, 4 
E)  1, 2, 3, 4

Question 5

The primary purpose of the middle ear bony structures (maleus,incus and stapes)is to

Accepted Answer

A)  equalize pressure in the middle ear. 
B)  amplify the vibration as it conducts to the cochlea. 
C)  dampen the vibration as it conducts to the cochlea. 
D)  transmit otitis media to the cochlea. 
E)  transduce the sound waves into vibration. 
A)  equalize pressure in the middle ear. 
B)  amplify the vibration as it conducts to the cochlea. 
C)  dampen the vibration as it conducts to the cochlea. 
D)  transmit otitis media to the cochlea. 
E)  transduce the sound waves into vibration.

Question 6

Match the specific receptor to its typical stimulus.
-flutter

Accepted Answer

A) free nerve ending 
B) Merkel receptor 
C) Meissner's corpuscle 
D) Ruffini corpuscle 
E) Pacinian corpuscle 
A) free nerve ending 
B) Merkel receptor 
C) Meissner's corpuscle 
D) Ruffini corpuscle 
E) Pacinian corpuscle

Question 7

Umami is

Accepted Answer

A)  another name for salty taste. 
B)  a taste receptor cell activated by glutamate and nucleotides. 
C)  a flavor enhancer that is part of olfaction. 
D)  the name of the ion channel activated by glutamate. 
A)  another name for salty taste. 
B)  a taste receptor cell activated by glutamate and nucleotides. 
C)  a flavor enhancer that is part of olfaction. 
D)  the name of the ion channel activated by glutamate.

Question 8

Which of the following statements regarding pathways for somatic perception projection is correct?

Accepted Answer

A)  The tertiary sensory neurons cross-over the body's midline. 
B)  The synapse for the secondary to tertiary sensory neuron is within the medulla. 
C)  The longest of the secondary sensory neurons transmit fine touch and proprioceptive information. 
D)  Primary sensory neurons from the hands project to a specific region of the somatosensory cortex. 
E)  Primary sensory neurons that respond to cold sensation project to the same region of the somatosensory cortex. 
A)  The tertiary sensory neurons cross-over the body's midline. 
B)  The synapse for the secondary to tertiary sensory neuron is within the medulla. 
C)  The longest of the secondary sensory neurons transmit fine touch and proprioceptive information. 
D)  Primary sensory neurons from the hands project to a specific region of the somatosensory cortex. 
E)  Primary sensory neurons that respond to cold sensation project to the same region of the somatosensory cortex.

Question 9

You work in a paper mill.The smell is horrible every day when you get to work,but by the end of the day,you hardly notice it.Why?

Accepted Answer

Olfactory receptors are phasic.They fire

Question 10

The gate control theory of pain modulation states that pain transmission can be blocked by

Accepted Answer

A)  cold stimulation of the A-delta fibers. 
B)  mechanical stimulation of A-beta fibers. 
C)  stimulation of C-fibers. 
D)  tonic activity of the inhibitory neurons in the dorsal horn. 
A)  cold stimulation of the A-delta fibers. 
B)  mechanical stimulation of A-beta fibers. 
C)  stimulation of C-fibers. 
D)  tonic activity of the inhibitory neurons in the dorsal horn.

Question 11

Match the type of receptor with the appropriate description.
-These are probably the oldest sensory receptors as evidenced by their existence in primitive animals that do not have formalized nervous systems.

Accepted Answer

A) chemoreceptors 
B) touch receptors 
C) thermoreceptors 
D) nociceptors 
A) chemoreceptors 
B) touch receptors 
C) thermoreceptors 
D) nociceptors

Question 12

Convergence describes

Accepted Answer

A)  the reason why receptive fields are so small. 
B)  how one primary sensory receptor neurons synapses with a secondary neuron. 
C)  how multiple primary sensory neurons synapse on a single secondary neuron. 
D)  how receptive fields can overlap with one another. 
A)  the reason why receptive fields are so small. 
B)  how one primary sensory receptor neurons synapses with a secondary neuron. 
C)  how multiple primary sensory neurons synapse on a single secondary neuron. 
D)  how receptive fields can overlap with one another.

Question 13

Sensations of the forces of gravity and linear acceleration are detected in the

Accepted Answer

A)  semicircular canals. 
B)  cochlea. 
C)  ossicles. 
D)  saccule and utricle. 
E)  organ of Corti. 
A)  semicircular canals. 
B)  cochlea. 
C)  ossicles. 
D)  saccule and utricle. 
E)  organ of Corti.

Question 14

Match the symptoms to the problem.
-conductive hearing loss

Accepted Answer

A) damage to the cerebral cortex 
B) degeneration of hair cells 
C) ringing in the ears 
D) dizziness and nausea 
E) problems with structures of the middle ear 
A) damage to the cerebral cortex 
B) degeneration of hair cells 
C) ringing in the ears 
D) dizziness and nausea 
E) problems with structures of the middle ear

Question 15

The intensity of a stimulus can be determined within the central nervous system by

Accepted Answer

A)  population coding only. 
B)  labeled line coding only. 
C)  frequency coding only. 
D)  population coding and/or frequency coding. 
E)  labeled line coding and/or frequency coding. 
A)  population coding only. 
B)  labeled line coding only. 
C)  frequency coding only. 
D)  population coding and/or frequency coding. 
E)  labeled line coding and/or frequency coding.

Question 16

________ hearing loss results from conditions that affect the ability of sound wave that have entered the external ear from generating/transmitting a vibration that will reach the cochlea.

Accepted Answer

The answer of ________ hearing loss results from conditions that...

Question 17

The perception threshold describes the

Accepted Answer

A)  intensity of stimulus required to generate a receptor potential. 
B)  intensity of stimulus required to generate an action potential. 
C)  convergence of information from multiple primary sensory neuron onto a single secondary neuron. 
D)  concept that neurons higher in the sensory pathway can dampen the intensity of a stimulus. 
A)  intensity of stimulus required to generate a receptor potential. 
B)  intensity of stimulus required to generate an action potential. 
C)  convergence of information from multiple primary sensory neuron onto a single secondary neuron. 
D)  concept that neurons higher in the sensory pathway can dampen the intensity of a stimulus.

Question 18

A graded change in membrane potential within a sensory receptor cell is always called a(n)

Accepted Answer

A)  depolarization. 
B)  hyperpolarization. 
C)  action potential. 
D)  receptor potential. 
A)  depolarization. 
B)  hyperpolarization. 
C)  action potential. 
D)  receptor potential.

Question 19

A viral infection involving the vestibular nuclei may result in

Accepted Answer

A)  loss of hearing. 
B)  loss of sight. 
C)  a sense of dizziness. 
D)  local paralysis. 
E)  high blood pressure. 
A)  loss of hearing. 
B)  loss of sight. 
C)  a sense of dizziness. 
D)  local paralysis. 
E)  high blood pressure.

Question 20

Match the ganglion cell response to the location of the light stimulus.
-Light only shines on the surround of an off-surround visual field.

Accepted Answer

A) fully excited 
B) fully inhibited 
C) weak response 
A) fully excited 
B) fully inhibited 
C) weak response

Exam 10: Sensory Physiology

Distinguish between adequate stimulus,threshold stimulus,and perceptual threshold.

As an object moves closer to the eye,the ciliary muscle ________ making the lens ________ in order to keep the object in focus.

The cilia of the hair cells of the semicircular canals are embedded in the

Put these structures of the visual system in the order that they transmit visual information from the retina. 1)optic disk 2)visual cortex of the occipital lobe 3)optic chiasm 4)lateral geniculate body of the thalamus

The primary purpose of the middle ear bony structures (maleus,incus and stapes)is to

Match the specific receptor to its typical stimulus. -flutter

Umami is

Which of the following statements regarding pathways for somatic perception projection is correct?

You work in a paper mill.The smell is horrible every day when you get to work,but by the end of the day,you hardly notice it.Why?

The gate control theory of pain modulation states that pain transmission can be blocked by

Match the type of receptor with the appropriate description. -These are probably the oldest sensory receptors as evidenced by their existence in primitive animals that do not have formalized nervous systems.

Convergence describes

Sensations of the forces of gravity and linear acceleration are detected in the

Match the symptoms to the problem. -conductive hearing loss

The intensity of a stimulus can be determined within the central nervous system by

________ hearing loss results from conditions that affect the ability of sound wave that have entered the external ear from generating/transmitting a vibration that will reach the cochlea.

The perception threshold describes the

A graded change in membrane potential within a sensory receptor cell is always called a(n)

A viral infection involving the vestibular nuclei may result in

Match the ganglion cell response to the location of the light stimulus. -Light only shines on the surround of an off-surround visual field.

Introduction to Physiology

Molecular Interactions

Compartmentation: Cells and Tissues

Energy and Cellular Metabolism

Membrane Dynamics

Communication, Integration, and Homeostasis

Introduction to the Endocrine System

Neurons: Cellular and Network Properties

The Central Nervous System

Efferent Division: Autonomic and Somatic Motor Control

Muscles

Integrative Physiology I: Control of Body Movement

Cardiovascular Physiology

Blood Flow and the Control of Blood Pressure

Blood

Mechanics of Breathing

Gas Exchange and Transport

The Kidneys

Integrative Physiology II: Fluid and Electrolyte Balance

The Digestive System

Metabolism and Energy Balance

Endocrine Control of Growth and Metabolism

The Immune System

Integrative Physiology III: Exercise

Reproduction and Development

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As an object moves closer to the eye,the ciliary muscle making the lens in order to keep the object in focus.