Question 1

The ability of the olfactory system to adapt to a particular odor may involve

Accepted Answer

A)   sensitivity of the olfactory cortex.
B)   an increase in the sensitivity at the receptor sites.
C)   neurons from the medial olfactory area stimulating mitral cells and tufted cells.
D)   the intermediate olfactory area sending inhibiting impulses to the olfactory bulb.
E)   molecules that do not bind to receptors anymore.F) A) and B)
G) None of the above

Question 2

Match the structure with the appropriate description.
-iris

Accepted Answer

A)  photoreceptor cells that function in black and white vision
B)  photoreceptor cells that function in color vision
C)  the opening in the iris
D)  the innermost tunic of the eye
E)  a pigmented contractile structureF) C) and D)
G) B) and D)

Question 3

The outermost tunic of the eyeball is the

Accepted Answer

A)   iris.
B)   sclera.
C)   retina.
D)   choroid.
E)   conjunctiva.F) A) and C)
G) C) and D)

Question 4

Match the structure with the appropriate description.
-visual cortex

Accepted Answer

A)  the area that can be seen with the eyes open
B)  opening in the orbit through which the optic nerve passes
C)  the cerebral area that integrates messages from retina
D)  area where medial ganglion cell axons cross over
E)  the route of the ganglionic axons beyond the chiasmaF) A) and B)
G) C) and D)

Question 5

A ringing in the ears is considered

Accepted Answer

A)   tinnitus.
B)   trachoma.
C)   nystagmus.
D)   mydriasis.
E)   otitis media.F) B) and E)
G) D) and E)

Question 6

In order for a molecule to be detected by the olfactory neurons, it must

Accepted Answer

A)   be present in high concentrations.
B)   be one of the seven primary classes of odors.
C)   be dissolved in fluid covering the olfactory epithelium.
D)   interact with the mechanoreceptors of the olfactory hair membrane.
E)   enter the nose slowly.F) C) and D)
G) D) and E)

Question 7

-Olfaction is the sense of smell. What does "C" represent?

Accepted Answer

A)   olfactory bulb
B)   cilia (olfactory hairs) 
C)   olfactory neuron
D)   axon of olfactory neuron
E)   olfactory tractF) A) and E)
G) C) and D)

Question 8

-What is layer "A" on the diagram of the retina?

Accepted Answer

A)   bipolar layer
B)   ganglionic layer
C)   choroid
D)   pigmented layer
E)   photoreceptor layerF) A) and D)
G) A) and C)

Question 9

Which of the following is correctly matched?

Accepted Answer

A)   sclera - ciliary body
B)   iris - sphincter pupillae
C)   retina - canal of Schlemm
D)   vitreous humor - anterior chamber
E)   aqueous humor - vitreous chamberF) C) and D)
G) C) and E)

Question 10

Match the structure with the appropriate description.
-palpebral conjunctiva

Accepted Answer

A)  the angle where the eyelids join
B)  the space between the two eyelids
C)  another name for the eyelids
D)  the membrane that covers the inner surface of the eyelids
E)  the membrane that covers the anterior sclera of the eyeF) B) and C)
G) All of the above

Question 11

The utricle and saccule are involved in

Accepted Answer

A)   static balance.
B)   kinetic balance.
C)   hearing low intensity sounds.
D)   hearing high intensity sounds.
E)   evaluating movements of the head.F) A) and D)
G) A) and C)

Question 12

Match the description with its correct name.
-myopia

Accepted Answer

A)  difficulty seeing distant objects
B)  a type of refractory error
C)  clouding of the lens of the eye
D)  increased intraocular pressure that can lead to loss of vision
E)  loss of acute central visionF) B) and E)
G) C) and D)

Question 13

Light and dark adaptation involves

Accepted Answer

A)   pupillary reflexes.
B)   variations in rod and cone function.
C)   changes in the amount of available rhodopsin.
D)   pupillary reflexes and changes in the amount of available rhodopsin.
E)   pupillary reflexes, variations in rod and cone function and changes in the amount of available rhodopsin.F) A) and B)
G) B) and C)

Question 14

Which of the following is NOT a primary odor class?

Accepted Answer

A)   umami
B)   floral
C)   putrid
D)   pepperminty
E)   etherealF) B) and E)
G) A) and B)

Question 15

Match the description with the most appropriate structure.
-auditory tube

Accepted Answer

A)  structures that produce earwax
B)  fluid in the membranous labyrinth
C)  fluid between the membranous and bony labyrinth
D)  ossicles connect this structure to eardrum
E)  connects the middle ear to the pharynxF) None of the above
G) B) and D)

Question 16

Which type of taste has the lowest threshold?

Accepted Answer

A)   sweet
B)   bitter
C)   salty
D)   sour
E)   umamiF) A) and E)
G) B) and D)

Question 17

Which of the following structures is part of the vascular tunic?

Accepted Answer

A)   iris
B)   retina
C)   optic disc
D)   fovea centralis
E)   corneaF) B) and E)
G) A) and C)

Question 18

The receptor cells for which of the following special senses are bipolar neurons?

Accepted Answer

A)   equilibrium
B)   hearing
C)   smell
D)   taste
E)   touchF) C) and D)
G) D) and E)

Question 19

When you try to focus on the tip of your nose,

Accepted Answer

A)   the pupils dilate.
B)   the ciliary muscles relax.
C)   the lens becomes more spherical.
D)   the tension on the suspensory ligament increases.
E)   the lens becomes flatter.F) D) and E)
G) A) and D)

Question 20

-What is layer "E" on the diagram of the retina?

Accepted Answer

A)   bipolar layer
B)   ganglionic layer
C)   choroid
D)   pigmented layer
E)   photoreceptor layerF) A) and E)
G) B) and E)

Exam 15: The Special Senses

-Olfaction is the sense of smell. What does "C" represent?

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The receptor cells for which of the following special senses are bipolar neurons?

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In order for a molecule to be detected by the olfactory neurons, it must

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Light and dark adaptation involves

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Which of the following structures is part of the vascular tunic?

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When you try to focus on the tip of your nose,

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The ability of the olfactory system to adapt to a particular odor may involve

Correct AnswerverifiedShow Answer

Which type of taste has the lowest threshold?

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Match the description with the most appropriate structure. -auditory tube

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Match the structure with the appropriate description. -visual cortex

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Match the description with its correct name. -myopia

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-What is layer "E" on the diagram of the retina?

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Match the structure with the appropriate description. -palpebral conjunctiva

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Which of the following is NOT a primary odor class?

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A ringing in the ears is considered

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-What is layer "A" on the diagram of the retina?

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The utricle and saccule are involved in

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Which of the following is correctly matched?

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The outermost tunic of the eyeball is the

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Match the structure with the appropriate description. -iris

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