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Movement of hair cells in the semicircular canals signals


A) sound waves to the brain.
B) the direction of motion.
C) the frequency of the sound.
D) the velocity of the movement.

E) A) and C)
F) All of the above

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B

The __________ is the ossicle that transmits vibrations to the inner ear through the oval window.

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General senses result from stimulation of receptors in the head only.

A) True
B) False

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The adjustment of the thickness of the lens to make close vision possible is called ______________ .

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Smell and taste disorders may be caused by


A) a side effect of a drug.
B) allergies.
C) a head injury.
D) all of the above.

E) A) and B)
F) None of the above

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The range of human hearing is about


A) 2,000-3,000 vibrations per second.
B) 2,000-200,000 vibrations per second.
C) 20-20,000 vibrations per second.
D) 2-2,000 vibrations per second.

E) None of the above
F) B) and C)

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Stretching of tissues can cause pain sensations to arise from visceral organs.

A) True
B) False

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As they extend from the retina to the brain, the nerve fibers


A) from the nasal half of each retina cross over.
B) from the temporal half of each retina cross over.
C) all cross over.
D) do not cross over.

E) A) and C)
F) A) and D)

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Jenny slurps up a plate of beef lo mein at a Chinese restaurant. "That tastes great, but I can't quite describe it." What type of taste sensation is she experiencing?


A) Paprika
B) Umami
C) Starch
D) Pepper

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

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Sensory impulses are stimulated at receptors by


A) neurotransmitters.
B) decreasing permeability of nerve cell membranes.
C) subthrehold potential.
D) local changes in their cell membrane potentials.

E) All of the above
F) C) and D)

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D

Which of the following is part of the inner tunic of the eye?


A) Retina
B) Cornea
C) Choroid coat
D) Sclera

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

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Rods are more sensitive to light than cones, but cones are important for color vision.

A) True
B) False

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Another name for pain receptors is


A) tactile corpuscles.
B) lamellated corpuscles.
C) nociceptors.
D) mechanoreceptors.

E) A) and C)
F) All of the above

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If a person's right visual cortex is damaged, the injury will most likely affect vision from the


A) right eye only.
B) left eye only.
C) nasal side of one eye and the temporal side of the other eye.
D) nasal side of both eyes.

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

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Treatment for cataract is usually removal of the


A) cornea.
B) sclera.
C) lens.
D) vitreous humor.

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

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Impulses from taste receptors can travel in the facial, glossopharyngeal, and vagus nerves.

A) True
B) False

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The ability to ignore your socks around your ankles demonstrates


A) general adaptation.
B) receptor integration.
C) interpretive assimilation.
D) sensory adaptation.

E) C) and D)
F) A) and C)

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Bitter receptors sense


A) alkaloids.
B) acids.
C) inorganic salts.
D) carbohydrates.

E) B) and C)
F) None of the above

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A

Otosclerosis affects the


A) tympanic membrane.
B) auditory ossicles.
C) cochlea.
D) auditory nerve.

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

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The war veteran experiences an intense burning sensation seeming to come from where his foot had been amputated. He most likely has


A) hereditary sensory and autonomic neuropathy.
B) post traumatic stress disorder.
C) reflex sympathetic dystrophy.
D) anosmia.

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

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