Question 1

A(An)  eye does not need a corrective lens to focus the image.

Accepted Answer

A)  hyperopic
B)  myopic
C)  presbyopic
D)  emmetropic
E)  astigmaticF) D) and E)
G) C) and E)

Question 2

What is a sensation?

Accepted Answer

A)  a response of a sensory receptor
B)  a response of a sensory organ
C)  a subjective awareness of a stimulus
D)  an unconscious response to a stimulus
E)  a response to any conscious stimulusF) C) and E)
G) A) and B)

Question 3

are the only retinal cells that produce action potentials.

Accepted Answer

A)  Rods
B)  Cones
C)  Ganglion cells
D)  Bipolar cells
E)  Horizontal cellsF) A) and E)
G) A) and D)

Question 4

Most second-order somesthetic neurons synapse with third-order neurons in the

Accepted Answer

A)  midbrain.
B)  thalamus.
C)  spinothalamic tract.
D)  hypothalamus.
E)  postcentral gyrus.F) All of the above
G) A) and E)

Question 5

Which of these is most vulnerable to irreversible damage caused by a very loud noise?

Accepted Answer

A)  the ossicles
B)  cochlear hair cells
C)  the tympanic membrane
D)  fibers of the cochlear nerve
E)  the tectorial membraneF) A) and D)
G) C) and D)

Question 6

The cornea belongs to the tunica fibrosa (fibrous layer) of the eyeball.

Accepted Answer

A) True 
 B)False

Question 7

Sensory receptors sense only stimuli external to the body, such as light, sound waves, smell, and
touch.

Accepted Answer

A) True 
 B)False

Question 8

are responsible for photopic (day)  vision as well as trichromatic (color)  vision.

Accepted Answer

A)  Bipolar cells
B)  Rods
C)  Cones
D)  Ganglion cells
E)  Pigment cellsF) C) and D)
G) D) and E)

Question 9

These are all analgesics (pain relievers)  naturally occurring in the central nervous system except

Accepted Answer

A)  endogenous opioids.
B)  dynorphins.
C)  enkephalins.
D)  endorphins.
E)  bradykinins.F) A) and D)
G) C) and D)

Question 10

The first-order neurons in the visual pathway are

Accepted Answer

A)  the optic nerve fibers.
B)  the rods and cones.
C)  the ganglion cells.
D)  the bipolar cells of the retina.
E)  the photoreceptors of the eye.F) A) and E)
G) C) and D)

Question 11

Which structure allows upper respiratory infections to spread from the throat to the tympanic cavity?

Accepted Answer

A)  the oval window
B)  the cochlear duct
C)  the auditory canal
D)  the auditory (eustachian)  tube
E)  the tympanic cavityF) A) and B)
G) All of the above

Question 12

The initial effect of a stimulus on a sensory receptor is a local electrical change specifically called a(an)

Accepted Answer

A)  action potential.
B)  graded potential.
C)  local potential.
D)  sensory potential.
E)  receptor potential.F) A) and B)
G) B) and C)

Question 13

The ossicles belong to the middle ear.

Accepted Answer

A) True 
 B)False

Question 14

This figure shows a schematic of the layers of the retinal cells.What does "5" represent?

Accepted Answer

A)  a bipolar cell
B)  a pigment cell
C)  a rod
D)  a cone
E)  a ganglion cellF) B) and D)
G) C) and D)

Question 15

Each upward movement of the causes the stereocilia of the inner hair cells to bend, opening gates.

Accepted Answer

A)  basilar membrane; K+
B)  tectorial membrane; K+
C)  vestibular membrane; K+
D)  basilar membrane; Na+
E)  tectorial membrane; Na+F) A) and B)
G) B) and C)

Question 16

What structure is visible to the naked eye?

Accepted Answer

A)  lingual papilla
B)  taste (gustatory)  cell
C)  taste hair
D)  taste bud
E)  taste poreF) A) and B)
G) B) and E)

Question 17

The structure shown in this figure is located within which of the following structures?

Accepted Answer

A)  Scala vestibuli
B)  Scala tympani
C)  Cochlear duct
D)  Anterior semicircular duct
E)  VestibuleF) A) and B)
G) A) and C)

Question 18

Half of the fibers of each optic nerve decussate at the .

Accepted Answer

A)  superior colliculus
B)  optic chiasm
C)  lateral geniculate nucleus of the thalamus
D)  optic foramen
E)  midbrainF) B) and E)
G) None of the above

Question 19

Taste signals travel from the tongue through the facial and glossopharyngeal nerves.

Accepted Answer

A) True 
 B)False

Question 20

Divergent sensory pathways explain the phenomenon of referred pain.

Accepted Answer

A) True 
 B)False

Exam 16: Sense Organs

What is a sensation?

Correct AnswerverifiedShow Answer

Most second-order somesthetic neurons synapse with third-order neurons in the

Correct AnswerverifiedShow Answer

Sensory receptors sense only stimuli external to the body, such as light, sound waves, smell, and touch.

Correct AnswerverifiedShow Answer

These are all analgesics (pain relievers) naturally occurring in the central nervous system except

Correct AnswerverifiedShow Answer

are the only retinal cells that produce action potentials.

Correct AnswerverifiedShow Answer

Which of these is most vulnerable to irreversible damage caused by a very loud noise?

Correct AnswerverifiedShow Answer

Taste signals travel from the tongue through the facial and glossopharyngeal nerves.

Correct AnswerverifiedShow Answer

The ossicles belong to the middle ear.

Correct AnswerverifiedShow Answer

The first-order neurons in the visual pathway are

Correct AnswerverifiedShow Answer

Which structure allows upper respiratory infections to spread from the throat to the tympanic cavity?

Correct AnswerverifiedShow Answer

The initial effect of a stimulus on a sensory receptor is a local electrical change specifically called a(an)

Correct AnswerverifiedShow Answer

A(An) eye does not need a corrective lens to focus the image.

Correct AnswerverifiedShow Answer

The structure shown in this figure is located within which of the following structures?

Correct AnswerverifiedShow Answer

This figure shows a schematic of the layers of the retinal cells.What does "5" represent?

Correct AnswerverifiedShow Answer

Half of the fibers of each optic nerve decussate at the .

Correct AnswerverifiedShow Answer

What structure is visible to the naked eye?

Correct AnswerverifiedShow Answer

Divergent sensory pathways explain the phenomenon of referred pain.

Correct AnswerverifiedShow Answer

are responsible for photopic (day) vision as well as trichromatic (color) vision.

Correct AnswerverifiedShow Answer

The cornea belongs to the tunica fibrosa (fibrous layer) of the eyeball.

Correct AnswerverifiedShow Answer

Each upward movement of the causes the stereocilia of the inner hair cells to bend, opening gates.

Correct AnswerverifiedShow Answer

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