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  Figure 16.2 Use the diagram above to answer the following questions. -Identify the letter that indicates the portion of the fibrous layer known as the sclera. A)  A B)  B C)  C D)  D E)  E Figure 16.2 Use the diagram above to answer the following questions. -Identify the letter that indicates the portion of the fibrous layer known as the sclera.


A) A
B) B
C) C
D) D
E) E

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

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The lens of the eye is attached to stringlike , which are anchored by ciliary bodies attached to the sclera.

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The posterior segment of the eye contains humor.

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The transmission of sound vibrations through the external acoustic meatus occurs chiefly through


A) bone.
B) air.
C) nerve fibers.
D) fluid.

E) None of the above
F) All of the above

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Abraham spoke so softly that Jason rolled a piece of paper into a funnel shape and put one end into his external auditory canal to signal Abraham to speak up. Abraham then shouted that a certain anatomical structure serves exactly the same function as Jasonʹs paper funnel. That structure is the


A) pharyngotympanic tube.
B) pinna.
C) mastoid antrum.
D) round window.

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

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The oil component found in tears is produced by the


A) lacrimal glands.
B) endocrine glands.
C) conjunctiva.
D) tarsal glands.

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

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During embryonic development, the retina of the eye develops from


A) an outpocketing of the diencephalon.
B) the mesoderm and the endoderm.
C) the mesoderm.
D) the surface ectoderm.

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

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Of the following glands, which does not help keep the anterior part of the eye from drying out?


A) lacrimal gland
B) tarsal glands
C) lacrimal caruncle
D) goblet cells in the conjunctiva

E) None of the above
F) All of the above

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Nerve axons from the lateral portion of each retina


A) cross over to the opposite side of the retina.
B) pass posteriorly without crossing over at the chiasma.
C) carry information from the lateral half of the visual field.
D) branch at the chiasma, some branches crossing and some not crossing.

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

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Scientists who are trying to find a way to make neurons divide to heal nerve injuries often study the bodyʹs few mitotic neurons. These neurons are the


A) photoreceptors.
B) basal cells in the taste buds.
C) auditory hair cells.
D) olfactory stem cells.

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

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  Figure 16.1 Use the diagram above to answer the following questions. -Identify the letter that indicates the structure that is the boundary between the external and middle ear. A)  A B)  B C)  C D)  D E)  E Figure 16.1 Use the diagram above to answer the following questions. -Identify the letter that indicates the structure that is the boundary between the external and middle ear.


A) A
B) B
C) C
D) D
E) E

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

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Which of the following statements does not correctly describe the spiral organ of Corti?


A) The ʺhairsʺ of the receptor cells are embedded in the tectorial membrane.
B) The spiral organ is part of the cochlear duct, which equals the scala media.
C) The tectorial membrane bends with vibrations, whereas the basilar membrane is rigid and fixed.
D) High-frequency sounds stimulate hair cells at the basal end of the basilar membrane.

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

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The special sense most like gustation (taste) in terms of type of receptor is .

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The sclera of the eye develops from


A) head mesenchyme.
B) the lens placode.
C) the optic cup.
D) the optic stalk.

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

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Endolymph is made


A) from the dura mater.
B) in the stria vascularis.
C) from perilymph.
D) in the scala vestibuli.

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

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The bony labyrinth is located in which portion of the temporal bone?


A) petrous
B) tympanic
C) mastoid
D) squamous

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

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The tips of cochlear hair cells are embedded in the basilar membrane.

A) True
B) False

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Bipolar olfactory sensory neurons undergo continual renewal and replacement.

A) True
B) False

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Filaments of the olfactory receptor cells synapse with these cells of the olfactory tract.


A) mitral cells
B) olfactory stem cells
C) glomeruli
D) support epithelial cells
E) cells in the lamina propria

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

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Conduction deafness results from an inability of vibrations to pass to the inner ear.

A) True
B) False

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