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What is the greatest benefit of having three semicircular canals involved in detecting rotational equilibrium?


A) It allows for one to be in each dimension of space.
B) It increases the surface area for detection of direction.
C) It provides backups in case one gets damaged.
D) It can process information faster.
E) It produces larger volumes of calcium carbonate.

F) All of the above
G) None of the above

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Puncturing the tympanic membrane would


A) make you totally deaf.
B) prevent the normal transmission of sound vibration.
C) destroy the sense receptors for hearing.
D) account for why some people who hear still cannot sing a tune.
E) account for dizziness and equilibrium problems.

F) C) and E)
G) B) and E)

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Which of the following is true about cones?


A) They detect color of an object.
B) They detect detail of an object.
C) They require high-intensity light.
D) Rods are more numerous in the retina than cones.
E) All of the answer choices are true.

F) A) and E)
G) A) and D)

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Complete the following table of exteroreceptors. Sensory Receptor \quad\quad\quad\quad\quad\quad Stimulus      ~~~~~ Category      ~~~~~ Sense Taste cells Olfactory cells Rods and cones in retina Hair cells in spiral organ Hair cells in semicircular canals Hair cells in vestibule

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The comple...

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Jennifer's doctor tells her that she is experiencing a problem with her proprioceptors. What symptoms must Jennifer be experiencing?


A) falling down
B) memory failure
C) intense pain
D) a fight-or-flight response
E) blindness

F) A) and E)
G) D) and E)

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Which of the following statements is true?


A) Hearing is not dependent on the inner ear.
B) All parts of the organ of Corti hear all ranges of sound.
C) Loud music does not damage your ears.
D) Hearing is dependent on mechanical pressure.
E) Sound is similar to light insofar as it is transmitted through the vacuum of space.

F) C) and D)
G) A) and D)

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The sclera is continuous with the


A) cornea.
B) iris.
C) retina.
D) choroid coat.
E) fovea centralis.

F) B) and C)
G) All of the above

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List the parts that make up the outer ear, middle ear, and inner ear.

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The outer ear consists of the pinna, ear...

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Glaucoma is caused by


A) hardening of the lens.
B) inadequate drainage of the aqueous humor.
C) loss of the otoliths.
D) loss of taste cells.
E) overstimulation of the ampulla.

F) A) and E)
G) B) and E)

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Both eyes "see" the entire visual field. However, because of the optic chiasma


A) only data from the left half of each retina is carried by the optic tracts to the visual cortex.
B) data from the left half of each retina is carried by the right optic tract and data from the right half of each retina is carried by the left optic tract.
C) data from the right half of each retina is carried by the right optic tract and data from the left half of each retina is carried by the left optic tract.
D) the image on the back of the retina is inverted.
E) objects in the blind spot will disappear.

F) D) and E)
G) B) and E)

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The direction of movement of the head relative to gravity is determined by


A) stereocilia in a gelatinous material called a cupula.
B) movement of fluid in the ampulla.
C) displacement of otoliths on the otolithic membrane.
D) asymmetric nerve impulses from proprioceptors on the left and right side of the head.
E) integration of the visual and auditory signals in the equilibria center of the cortex.

F) A) and D)
G) A) and C)

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On the retina there is a specialized region in which vision for color is most acute. This area is called the


A) tectorial membrane.
B) otolith.
C) fovea centralis.
D) blind spot.
E) ampulla.

F) A) and E)
G) B) and C)

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Approximately 80-90% of what we perceive as "taste" is actually due to a sense of smell.

A) True
B) False

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Which cutaneous receptors are concentrated in the fingertips and palms?


A) Meissner corpuscles
B) Pacinian corpuscles
C) Ruffini endings
D) root hair plexus
E) free nerve endings

F) D) and E)
G) B) and C)

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Images arriving at the visual area of the brain have been split because the left optic tract carries information about the right portion of the visual field and the right optic tract carries information about the left portion of the visual field.

A) True
B) False

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Which of the following would be detected by a cutaneous receptor?


A) equilibrium
B) sound waves
C) motion
D) gravity
E) temperature

F) B) and E)
G) B) and D)

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You go to the doctor because you have been experiencing dizziness. Where does the doctor look first?


A) in your ears
B) in your mouth
C) in your eyes
D) in your nose
E) at your skin

F) C) and D)
G) D) and E)

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What substance will displace the cupula during rotational equilibrium?


A) fluid within the semicircular canal
B) fluid within the utricle
C) the otoliths within the semicircular canal
D) the otoliths within the vestibule
E) fluid within the auditory tube

F) B) and D)
G) A) and E)

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The tongue contains approximately 10,000 taste buds.

A) True
B) False

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The olfactory bulbs have a direct connection with what part of the brain?


A) limbic system
B) pons
C) medulla
D) brain stem
E) temporal lobe

F) D) and E)
G) B) and E)

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