Question 1

The initial response to sweet and umami involves the bind to a receptor, which activates the protein ________ whereas salty and sour stimulate ________.

Accepted Answer

gustducin,

Question 2

________ are sensory receptors that respond to changes in a stimulus by altering their firing which rapidly stops as the stimulus is maintained.

Accepted Answer

The answer of ________ are sensory receptors that respond to...

Question 3

________ 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 4

When a rod located in the retina is stimulated by light,

Accepted Answer

A)  the cell depolarizes. 
B)  the inactive form of retinal associates with bleached opsin. 
C)  the activity of transducin decreases. 
D)  the release of neurotransmitter increases. 
E)  the intracellular concentration of cGMP decreases. 
A)  the cell depolarizes. 
B)  the inactive form of retinal associates with bleached opsin. 
C)  the activity of transducin decreases. 
D)  the release of neurotransmitter increases. 
E)  the intracellular concentration of cGMP decreases.

Question 5

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 6

List the five taste receptors, what they respond to and describe how each of these receptors transduce that response.

Accepted Answer

Sweet (sugar), sour (acid), salty (certa

Question 7

Chemicals such as histamine, prostaglandins, serotonin, and substance P

Accepted Answer

A)  only sensitize nociceptors. 
B)  only activate nociceptors. 
C)  only inhibit nociceptors. 
D)  only sensitize and activate nociceptors. 
E)  sensitize, activate and inhibit nociceptors. 
A)  only sensitize nociceptors. 
B)  only activate nociceptors. 
C)  only inhibit nociceptors. 
D)  only sensitize and activate nociceptors. 
E)  sensitize, activate and inhibit nociceptors.

Question 8

The release of neurotransmitter from a vestibular hair cell into the synapse with a sensory neuron would increase

Accepted Answer

A)  in response to any mechanical stimulation of the hair cell. 
B)  when the stereocilia of the hair cell are displaced away from the kinocilium. 
C)  when the stereocilia are equally displaced to either side of the kinocilium. 
D)  when the stereocilia of the hair cell are displaced toward the kinocilium. 
A)  in response to any mechanical stimulation of the hair cell. 
B)  when the stereocilia of the hair cell are displaced away from the kinocilium. 
C)  when the stereocilia are equally displaced to either side of the kinocilium. 
D)  when the stereocilia of the hair cell are displaced toward the kinocilium.

Question 9

Low frequency sound waves create the maximum displacement of the basilar membrane ________, where that membrane is ________.

Accepted Answer

A)  near the helicotrema , stiffer 
B)  near the helicotrema, flexible 
C)  near the oval window, stiffer 
D)  near the oval window, flexible 
E)  in the middle, stiffer 
A)  near the helicotrema , stiffer 
B)  near the helicotrema, flexible 
C)  near the oval window, stiffer 
D)  near the oval window, flexible 
E)  in the middle, stiffer

Question 10

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 11

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 12

Describe how lateral inhibition allows for localization of a stimulus.

Accepted Answer

Lateral inhibition increases the contras

Question 13

The hair cells of the cochlear duct are located in the ________.

Accepted Answer

The answer of The hair cells of the cochlear duct...

Question 14

A decrease in ones perception of a stimulus whose intensity has not changed due to higher neural inhibition is

Accepted Answer

A)  habituation. 
B)  convergence. 
C)  divergence. 
D)  adaptation. 
A)  habituation. 
B)  convergence. 
C)  divergence. 
D)  adaptation.

Question 15

The central opening in the eye through which the light passes on to the retina is the

Accepted Answer

A)  conjunctiva. 
B)  cornea. 
C)  pupil. 
D)  lens. 
E)  fovea. 
A)  conjunctiva. 
B)  cornea. 
C)  pupil. 
D)  lens. 
E)  fovea.

Question 16

For a person suffering from ________, the focal point of the object is focused in front of the retina leading to blurring of distant objects.

Accepted Answer

The answer of For a person suffering from ________, the...

Question 17

Match the specific receptor to its typical stimulus.
-texture

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 18

Which structures monitor rotational acceleration of the head?

Accepted Answer

A)  cristae of the semicircular canals 
B)  maculae of the saccule only 
C)  maculae of the utricle only 
D)  maculae of the utricle and saccule 
A)  cristae of the semicircular canals 
B)  maculae of the saccule only 
C)  maculae of the utricle only 
D)  maculae of the utricle and saccule

Question 19

Match the type of receptor with the appropriate description.
-The most studied examples of this type are phasic receptors called Pacinian corpuscles.

Accepted Answer

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

Question 20

The following steps occur in rods when they are excited by a photon of light.Place them in the correct sequence.
1)Membrane sodium channels close.
2)cGMP is broken down.
3)The membrane hyperpolarizes and the rate of neurotransmitter release declines.
4)Transducin is activated.
5)Opsin is activated.

Accepted Answer

A)  1, 5, 2, 4, 3 
B)  5, 4, 2, 1, 3 
C)  3, 5, 2, 1, 4 
D)  4, 5, 2, 1, 3 
E)  1, 3, 4, 5, 2 
A)  1, 5, 2, 4, 3 
B)  5, 4, 2, 1, 3 
C)  3, 5, 2, 1, 4 
D)  4, 5, 2, 1, 3 
E)  1, 3, 4, 5, 2

Exam 10: Sensory Physiology

The initial response to sweet and umami involves the bind to a receptor, which activates the protein ________ whereas salty and sour stimulate ________.

________ are sensory receptors that respond to changes in a stimulus by altering their firing which rapidly stops as the stimulus is maintained.

________ 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.

When a rod located in the retina is stimulated by light,

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

List the five taste receptors, what they respond to and describe how each of these receptors transduce that response.

Chemicals such as histamine, prostaglandins, serotonin, and substance P

The release of neurotransmitter from a vestibular hair cell into the synapse with a sensory neuron would increase

Low frequency sound waves create the maximum displacement of the basilar membrane ________, where that membrane is ________.

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

Match the symptoms to the problem. -conductive hearing loss

Describe how lateral inhibition allows for localization of a stimulus.

The hair cells of the cochlear duct are located in the ________.

A decrease in ones perception of a stimulus whose intensity has not changed due to higher neural inhibition is

The central opening in the eye through which the light passes on to the retina is the

For a person suffering from ________, the focal point of the object is focused in front of the retina leading to blurring of distant objects.

Match the specific receptor to its typical stimulus. -texture

Which structures monitor rotational acceleration of the head?

Match the type of receptor with the appropriate description. -The most studied examples of this type are phasic receptors called Pacinian corpuscles.

The following steps occur in rods when they are excited by a photon of light.Place them in the correct sequence. 1)Membrane sodium channels close. 2)cGMP is broken down. 3)The membrane hyperpolarizes and the rate of neurotransmitter release declines. 4)Transducin is activated. 5)Opsin is activated.

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

Filters

The initial response to sweet and umami involves the bind to a receptor, which activates the protein whereas salty and sour stimulate .

Low frequency sound waves create the maximum displacement of the basilar membrane , where that membrane is .