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In nearsightedness,light rays are brought into focus


A) in front of the retina.
B) in back of the retina.
C) on the retina.
D) on the hair cells of the ampulla.
E) unevenly across the retina.

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

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Which of the following structures would be impacted by a bacterial infection of the inner ear?


A) semicircular canal,cochlear nerve,vestibular nerve,and cochlea.
B) semicircular canal,tympanic membrane,ear lobe,and vestibular nerve
C) auditory canal,cochlear nerve,malleus,and vestibular nerve
D) pinna,stapes,vestibule,and cochlear nerve

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

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If light rays are not focused evenly on the retina,a fuzzy image is formed.This condition is called


A) nearsightedness.
B) farsightedness.
C) astigmatism.
D) cataracts.
E) conduction deafness.

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

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The sclera is continuous with the


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

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

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Explain how a person detects gravitational equilibrium.

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Within the vestibule are the utricle and...

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Identify the labeled structures in the picture of the human ear. Identify the labeled structures in the picture of the human ear.   A: ________ B: ________ C: ________ D: ________ E: ________ F: ________ G: ________ H: ________ I: ________ J: ________ K: ________ L: ________ M: ________ A: ________ B: ________ C: ________ D: ________ E: ________ F: ________ G: ________ H: ________ I: ________ J: ________ K: ________ L: ________ M: ________

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A: semicircular canals B: vest...

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Identify the labeled structures that are involved in olfaction.Briefly describe the function of each structure. Identify the labeled structures that are involved in olfaction.Briefly describe the function of each structure.   A: ________ B: ________ C: ________ A: ________ B: ________ C: ________

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A: frontal lobe of cerebral hemisphere: ...

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Which of the following visual association with its related cause is NOT correct?


A) color blindness - lack of red or green cones
B) eyestrain - muscle fatigue from constant contraction of the ciliary muscle
C) cataracts - lens becomes opaque with aging and sun exposure
D) nearsighted - unable to see near objects in detail

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

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Which of the following statements about the rods and cones in the eye is NOT true?


A) The cones are better able to detect shades of color.
B) The rods are involved in black and white vision.
C) Rods and cones work together to detect the full image.
D) Rhodopsin is the molecule associated with vision.
E) Rods are activated by bright light and cones are better suited to night vision.

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

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Which of the following lists correctly traces the path of a sound vibration as it moves through the ear?


A) auditory canal-tympanic membrane-malleus-incus-stapes-oval window-cochlea-cochlear nerve
B) auditory canal-malleus-incus-stapes-tympanic membrane-oval window-cochlea-cochlear nerve
C) auditory canal-tympanic membrane-malleus-incus-stapes-cochlea-oval window-cochlear nerve
D) auditory canal-tympanic membrane-oval window-cochlea-malleus-incus-stapes-cochlear nerve
E) auditory canal-malleus-incus-stapes-oval window-tympanic membrane-cochlea-cochlear nerve

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

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Benign positional vertigo is due to


A) the formation of particles in the semicircular canal.These particles will stimulate the stereocilia producing a sensation of movement when there is actually no movement.
B) the formation of particles in the semicircular canal resulting in an inner ear infection.
C) the formation of particles in the cochlea.These particles will stimulate the stereocilia producing a sensation of movement when there is actually no movement.
D) the formation of particles in the malleus.These particles will stimulate the stereocilia producing a sensation of movement when there is actually no movement.
E) the calcification of the malleus producing a decrease in the conduction of sound.

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

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Which statement most accurately describes how we interpret the sensation of taste?


A) The taste buds contain microvilli that project into the taste pore.The molecules bind to receptor proteins located on the microvilli which send a nerve impulse to the brain for interpretation.
B) The taste buds contain receptor proteins that are located on the tongue.The molecules bind to receptor proteins which send a nerve impulse to the brain for interpretation.
C) The taste buds contain microvilli that project into the taste pore.The molecules bind to receptor proteins located on the microvilli which send a nerve impulse to the spinal cord for interpretation.
D) The tongue moves molecules into the mouth so that the sinuses can detect the various scents.This information is then sent to the brain for interpretation.
E) None of these describe how we interpret taste.

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

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Since chemoreceptors are found in arthropods,crustaceans,vertebrates and all other animals it is believed that chemoreception is the most primitive sense.

A) True
B) False

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Identify and briefly describe the function of the labeled structures in the human eye pictured here. Identify and briefly describe the function of the labeled structures in the human eye pictured here.   A: ________ B: ________ C: ________ D: ________ E: ________ F: ________ G: ________ H: ________ I: ________ J: ________ A: ________ B: ________ C: ________ D: ________ E: ________ F: ________ G: ________ H: ________ I: ________ J: ________

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A: Sclera: protects and supports the eye...

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At night,we see primarily black and white and shades of gray,except near lights where some color is still evident.This is outward evidence of what internal anatomy?


A) There are more cones than rods and cones are very sensitive to light.
B) Cones detect the color of an object,and are activated by bright light.
C) The retina has a circadian rhythm.
D) The lens filters differentially the many wavelengths of light.
E) The vitreous humor filters much light,and daytime intensity is necessary to get colored light through to the retina.

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

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The photoreceptors of the eye are located in the


A) retina.
B) optic nerve.
C) choroid layer.
D) sclera.
E) organ of Corti.

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

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The sense of rotational equilibrium is accomplished by hair cells found in the


A) cochlear duct.
B) outer ear.
C) middle ear.
D) ampullae.
E) organ of Corti.

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

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