Question 1

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 D)
G) A) and B)

Question 2

Which of the following structures houses the spiral organ?

Accepted Answer

A)  Cochlea
B)  Vestibule
C)  Semicircular duct
D)  Stapes
E)  Tympanic cavityF) A) and B)
G) C) and D)

Question 3

What are the only retinal cells that produce action potentials?

Accepted Answer

A)  Rods
B)  Cones
C)  Ganglion cells
D)  Bipolar cells
E)  Horizontal cellsF) All of the above
G) C) and D)

Question 4

Which taste sensation is produced by amino acids such as aspartic acid and glutamic acid?

Accepted Answer

A)  Salty
B)  Umami
C)  Bitter
D)  Sweet
E)  SourF) B) and D)
G) None of the above

Question 5

When you view objects close to the eye,the eye makes an adjustment called __________.

Accepted Answer

A)  emmetropia
B)  accommodation
C)  refraction
D)  myopia
E)  diplopiaF) B) and E)
G) A) and B)

Question 6

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) None of the above
G) C) and D)

Question 7

Which of the following is not involved with spinal gating of pain signals?

Accepted Answer

A)  Nociceptors
B)  The spinothalamic tract
C)  Lower motor neurons
D)  Second-order neurons
E)  The reticulospinal tractF) A) and B)
G) B) and C)

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is not an analgesic (pain reliever) found naturally in the central nervous system?

Accepted Answer

A)  Endogenous opioid
B)  Dynorphin
C)  Enkephalins
D)  Endorphins
E)  BradykininF) C) and E)
G) B) and C)

Question 11

The macula sacculi is nearly horizontal and the macula utriculi is nearly vertical.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following are unencapsulated endings?

Accepted Answer

A)  Free nerve endings
B)  Tactile corpuscles
C)  End bulbs
D)  Muscle spindlesE) A) and D)
F) A) and C)

Question 13

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

Accepted Answer

A)  Oval window
B)  Cochlear duct
C)  Auditory canal
D)  Auditory (Eustachian)  tube
E)  Tympanic cavityF) C) and D)
G) B) and C)

Question 14

Why do cones exhibit less neuronal convergence than rods?

Accepted Answer

A)  Rods cannot distinguish different colors from each other.
B)  Rods do not function in bright light.
C)  No images are perceived within the optic disc.
D)  Cones do not detect black and white.
E)  Photopic vision has higher resolution than scotopic vision.F) A) and B)
G) C) and D)

Question 15

What are the first-order neurons in the visual pathway?

Accepted Answer

A)  Optic nerve fibers
B)  Rods and cones
C)  Ganglion cells
D)  Bipolar cells
E)  Amacrine cellsF) A) and E)
G) C) and D)

Question 16

Nerve fibers from all regions of the retina converge on the __________ and exit the eye by way of the optic nerve.

Accepted Answer

A)  macula lutea
B)  optic disc
C)  fovea centralis
D)  ora serrata
E)  lensF) C) and D)
G) A) and B)

Question 17

What is the only sense in which signals can reach the cerebral cortex without passing first through the thalamus?

Accepted Answer

A)  Touch
B)  Smell
C)  Taste
D)  Vision
E)  EquilibriumF) A) and C)
G) B) and C)

Question 18

Light falling on the retina is absorbed by rhodopsin and photopsin in the pigment epithelium.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following structures 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 C)
G) A) and B)

Question 20

Which of the following structures belong to the inner ear?

Accepted Answer

A)  Tympanic membrane
B)  Helix
C)  Incus
D)  Semicircular duct
E)  Tensor tympani muscleF) A) and E)
G) B) and E)

Exam 16: Sense Organs

Which of the following structures belong to the inner ear?

Correct AnswerverifiedShow Answer

Which of the following structures houses the spiral organ?

Correct AnswerverifiedShow Answer

What are the only retinal cells that produce action potentials?

Correct AnswerverifiedShow Answer

Which of the following are unencapsulated endings?

Correct AnswerverifiedShow Answer

Which of the following structures is visible to the naked eye?

Correct AnswerverifiedShow Answer

When you view objects close to the eye,the eye makes an adjustment called __________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is not involved with spinal gating of pain signals?

Correct AnswerverifiedShow Answer

Light falling on the retina is absorbed by rhodopsin and photopsin in the pigment epithelium.

Correct AnswerverifiedShow Answer

What are the first-order neurons in the visual pathway?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is not an analgesic (pain reliever) found naturally in the central nervous system?

Correct AnswerverifiedShow Answer

What is a sensation?

Correct AnswerverifiedShow Answer

Which taste sensation is produced by amino acids such as aspartic acid and glutamic acid?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is the only sense in which signals can reach the cerebral cortex without passing first through the thalamus?

Correct AnswerverifiedShow Answer

Nerve fibers from all regions of the retina converge on the __________ and exit the eye by way of the optic nerve.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Why do cones exhibit less neuronal convergence than rods?

Correct AnswerverifiedShow Answer

The macula sacculi is nearly horizontal and the macula utriculi is nearly vertical.

Correct AnswerverifiedShow Answer

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