Question 1

Compound eyes in invertebrate animals are composed of many smaller ommatidia.

Accepted Answer

A) True 
 B)False

Question 2

In the dark,the Na+ channels in the outer segments of rod cells are

Accepted Answer

A)  open.
B)  closed.
C)  primarily affected by inhibitory neurotransmitter input.
D)  important in making the cell hyperpolarized in this resting state.E) A) and D)
F) B) and D)

Question 3

Mr.Johnson was becoming slightly deaf.To test his hearing,his doctor held a vibrating tuning fork tightly against Mr.Johnson's jaw.This sent vibrations through the bones of the skull,setting the fluid in the cochlea in motion.Mr.Johnson could hear the tuning fork this way,but not when it was held away from the skull a few inches from his ear.His hearing problem is most likely attributed to the

Accepted Answer

A)  auditory cortex of Mr.Johnson's brain.
B)  auditory nerve leading to Mr.Johnson's brain.
C)  hair cells in the cochlea.
D)  tympanum or the bones of the middle ear.
E)  fluid of the cochlea.F) A) and B)
G) C) and D)

Question 4

You turn on the shower and check the water temperature with your hand.Your brain is able to monitor increasing temperature because the thermosensitive neurons in your skin

Accepted Answer

A)  transmit action potentials to different brain regions as the water warms up.
B)  transmit bigger action potentials to the brain as the water warms up.
C)  gradually adapt to the stimulus.
D)  transmit action potentials at a greater rate when the water warms up.
E)  integrate temperature information.F) A) and D)
G) C) and D)

Question 5

What did Richard Axel and Linda Buck discover about the way in which we are able to perceive many different types of odors?

Accepted Answer

A)  Many different types of odors bind to just a few different types of receptor molecules.
B)  Vertebrate animals make a large number of distinct types of receptor proteins,each of which binds a particular odorant molecule or small group of such molecules.
C)  Odors are distinguished by the way in which they bind both olfactory and taste receptors-it is the overall "picture" generated this way that we perceive.
D)  None of these choices are correct.E) All of the above
F) A) and C)

Question 6

Within the vestibular system of vertebrates,hair cells help detect movement when their cilia are bent by

Accepted Answer

A)  otoliths.
B)  statoliths.
C)  the tectorial membrane.
D)  the basilar membrane.
E)  gravity.F) B) and E)
G) A) and C)

Question 7

Our sense of balance depends most directly on

Accepted Answer

A)  the vestibular system.
B)  the auditory system.
C)  mechanoreceptors in our hands and feet.
D)  the visual system.
E)  chemoreceptors in the environment.F) B) and E)
G) B) and D)

Question 8

The correct sequence for a sound (a vibration) traveling into the mammalian ear would be listed as

Accepted Answer

A)  pinna,tympanum,ossicles of middle ear,oval window,basilar membrane,hair cell
B)  tympanum,pinna,ossicles of middle ear,hair cell,oval window,basilar membrane
C)  pinna,ossicles of middle ear,tympanum,basilar membrane,oval window,hair cell
D)  hair cell,pinna,basilar membrane,ossicles of middle ear,tympanum,oval window
E)  pinna,oval window,tympanum,basilar membrane,ossicles of middle ear,hair cellF) B) and C)
G) C) and D)

Question 9

The transduction of sound waves into electrical signals takes place

Accepted Answer

A)  within the tectorial membrane as it is stimulated by the hair cell.
B)  within hair cells as they are bent against the tectorial membrane,causing them to depolarize and release neurotransmitter that stimulates sensory neurons.
C)  as the basilar membrane becomes more permeable to sodium ions and depolarizes,initiating an action potential in a sensory neuron.
D)  as the basilar membrane vibrates at different frequencies in response to the varying volume of sounds.
E)  within the middle ear as the vibrations are amplified by the malleus,incus and stapes.F) B) and D)
G) All of the above

Question 10

The tapetum lucidum is a shiny layer beneath the retina in the eyes of some animals.As light passes through the retina,it hits the tapedum lucidum and bounces back through the retina.What type of animal would likely have this structure?

Accepted Answer

A)  Humans
B)  Squirrels
C)  Owl
D)  Pigs
E)  GorillasF) A) and C)
G) None of the above

Question 11

The neuronal pathways behind gustatory reception most closely parallel those of

Accepted Answer

A)  olfaction.
B)  vision.
C)  limb position.
D)  light touch.
E)  pain.F) B) and C)
G) None of the above

Question 12

Our sense of "fullness" after a big meal is due to

Accepted Answer

A)  stretch receptors.
B)  chemoreceptors.
C)  thermoreceptors.
D)  electromagnetic receptors.E) A) and B)
F) B) and C)

Question 13

A student grabs a hand out from the teaacher and gets a painful paper cut.What type of receptor is responsible for this sensation?

Accepted Answer

A)  Mechanoreceptor
B)  Nociceptor
C)  Olfactory receptor
D)  Photoreceptor
E)  ThermoreceptorF) All of the above
G) D) and E)

Question 14

What is the difference between sensation and perception?

Accepted Answer

A)  Sensation is recognition of a perception.
B)  Perception is recognition of a sensation.
C)  Sensation sends action potentials to the CNS.
D)  Perception sends action potentials to the CNS.
E)  There is no true difference between sensation and perception.F) A) and D)
G) B) and E) B

Question 15

When someone has cataracts,they may be able to receive a lens implant.This is a surgical replacement of their cloudy lens with an artificial lens.Based on your knowledge of vision,would it usually be necessary to get a new prescription for their glasses following this surgery?

Accepted Answer

A)  Yes,the artificial lens will be fixed,so it cannot give distance vision one moment and near vision the next.
B)  No,they would no longer need glasses after lens replacement surgery because a new lens would not need correction.C) A) and B)
D) undefined

Question 16

The vision loss associated with glaucoma is most accurately explained by

Accepted Answer

A)  detachment of the retina from the outer part of the eye.
B)  protein accumulation in the lens.
C)  poor control of extraocular muscles.
D)  loss of photoreceptors in and around the fovea.
E)  intraocular pressure buildup due to poor drainage of the aqueous humor.F) A) and B)
G) All of the above E

Question 17

If you were building an eye to function primarily in low light,but preserve some ability to perceive color,you would construct it using

Accepted Answer

A)  all cones.
B)  all rods.
C)  mostly rods with some cones.
D)  mostly cones with some rods.E) A) and B)
F) None of the above

Question 18

The receptor potential is most accurately described as

Accepted Answer

A)  the membrane potential produced when a neurotransmitter molecule binds to its receptor.
B)  the membrane potential produced in the receptor cell by sensory transduction.
C)  the ability of sensory receptors to detect sensation.
D)  the electrical gradient produced by electromagnetic perception.
E)  the acuity of chemoreceptors to bind to ions.F) C) and D)
G) A) and B) B

Question 19

In the avian and mammalian eye,the lens remains stationary but changes shape in order to focus on objects at various distances.This is called "accommodation" and is accomplished through adjusting muscle control of the lens in order to

Accepted Answer

A)  alter the sensitivity of the eye to varying light levels.
B)  bend light rays to varying degrees according to the angle at which light enters the eye.
C)  regulate the vitreous humor volume.
D)  control the amount of light admitted to the eye through the pupil.
E)  convert light energy into electrical signals by the retina.F) A) and D)
G) A) and E)

Question 20

Sardines possess a sensory system called the lateral line,which help them to school by detecting the movements of other sardines swimming around them.What type of sensory receptors do you think are present in the lateral line?

Accepted Answer

A)  photoreceptors
B)  chemoreceptors
C)  stretch receptors
D)  mechanoreceptors
E)  thermoreceptorsF) C) and E)
G) D) and E)

Exam 33: Neuroscience II: Sensory Systems

Compound eyes in invertebrate animals are composed of many smaller ommatidia.

Correct Answer
verified

In the dark,the Na⁺ channels in the outer segments of rod cells are

Correct Answer
verified

Correct Answer
verified

You turn on the shower and check the water temperature with your hand.Your brain is able to monitor increasing temperature because the thermosensitive neurons in your skin

Correct Answer
verified

What did Richard Axel and Linda Buck discover about the way in which we are able to perceive many different types of odors?

Correct Answer
verified

Within the vestibular system of vertebrates,hair cells help detect movement when their cilia are bent by

Correct Answer
verified

Our sense of balance depends most directly on

Correct Answer
verified

The correct sequence for a sound (a vibration) traveling into the mammalian ear would be listed as

Correct Answer
verified

The transduction of sound waves into electrical signals takes place

Correct Answer
verified

The tapetum lucidum is a shiny layer beneath the retina in the eyes of some animals.As light passes through the retina,it hits the tapedum lucidum and bounces back through the retina.What type of animal would likely have this structure?

Correct Answer
verified

The neuronal pathways behind gustatory reception most closely parallel those of

Correct Answer
verified

Our sense of "fullness" after a big meal is due to

Correct Answer
verified

A student grabs a hand out from the teaacher and gets a painful paper cut.What type of receptor is responsible for this sensation?

Correct Answer
verified

What is the difference between sensation and perception?

Correct Answer
verified
B

When someone has cataracts,they may be able to receive a lens implant.This is a surgical replacement of their cloudy lens with an artificial lens.Based on your knowledge of vision,would it usually be necessary to get a new prescription for their glasses following this surgery?

Correct Answer
verified

The vision loss associated with glaucoma is most accurately explained by

Correct Answer
verified
E

If you were building an eye to function primarily in low light,but preserve some ability to perceive color,you would construct it using

Correct Answer
verified

The receptor potential is most accurately described as

Correct Answer
verified
B

In the avian and mammalian eye,the lens remains stationary but changes shape in order to focus on objects at various distances.This is called "accommodation" and is accomplished through adjusting muscle control of the lens in order to

Correct Answer
verified

Sardines possess a sensory system called the lateral line,which help them to school by detecting the movements of other sardines swimming around them.What type of sensory receptors do you think are present in the lateral line?

Correct Answer
verified

Exam 33: Neuroscience II: Sensory Systems

Compound eyes in invertebrate animals are composed of many smaller ommatidia.

Correct AnswerverifiedShow Answer

In the dark,the Na+ channels in the outer segments of rod cells are

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

You turn on the shower and check the water temperature with your hand.Your brain is able to monitor increasing temperature because the thermosensitive neurons in your skin

Correct AnswerverifiedShow Answer

What did Richard Axel and Linda Buck discover about the way in which we are able to perceive many different types of odors?

Correct AnswerverifiedShow Answer

Within the vestibular system of vertebrates,hair cells help detect movement when their cilia are bent by

Correct AnswerverifiedShow Answer

Our sense of balance depends most directly on

Correct AnswerverifiedShow Answer

The correct sequence for a sound (a vibration) traveling into the mammalian ear would be listed as

Correct AnswerverifiedShow Answer

The transduction of sound waves into electrical signals takes place

Correct AnswerverifiedShow Answer

The tapetum lucidum is a shiny layer beneath the retina in the eyes of some animals.As light passes through the retina,it hits the tapedum lucidum and bounces back through the retina.What type of animal would likely have this structure?

Correct AnswerverifiedShow Answer

The neuronal pathways behind gustatory reception most closely parallel those of

Correct AnswerverifiedShow Answer

Our sense of "fullness" after a big meal is due to

Correct AnswerverifiedShow Answer

A student grabs a hand out from the teaacher and gets a painful paper cut.What type of receptor is responsible for this sensation?

Correct AnswerverifiedShow Answer

What is the difference between sensation and perception?

Correct AnswerverifiedB

When someone has cataracts,they may be able to receive a lens implant.This is a surgical replacement of their cloudy lens with an artificial lens.Based on your knowledge of vision,would it usually be necessary to get a new prescription for their glasses following this surgery?

Correct AnswerverifiedShow Answer

The vision loss associated with glaucoma is most accurately explained by

Correct AnswerverifiedE

If you were building an eye to function primarily in low light,but preserve some ability to perceive color,you would construct it using

Correct AnswerverifiedShow Answer

The receptor potential is most accurately described as

Correct AnswerverifiedB

In the avian and mammalian eye,the lens remains stationary but changes shape in order to focus on objects at various distances.This is called "accommodation" and is accomplished through adjusting muscle control of the lens in order to

Correct AnswerverifiedShow Answer

Sardines possess a sensory system called the lateral line,which help them to school by detecting the movements of other sardines swimming around them.What type of sensory receptors do you think are present in the lateral line?

Correct AnswerverifiedShow Answer

Correct Answer
verified

In the dark,the Na⁺ channels in the outer segments of rod cells are

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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B

Correct Answer
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E

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B

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Correct Answer
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