Question 1

Arrange the following list of membranes in correct sequence in which they function during the process of hearing.
(1)  Tectorial membrane
(2)  Vestibular membrane
(3)  Tympanic membrane
(4)  Basilar membrane

Accepted Answer

A)   1, 2, 3, 4
B)   3, 4, 1, 2
C)   3, 2, 4, 1
D)   2, 4, 3, 1
E)   4, 3, 2, 1F) A) and E)
G) B) and D)

Question 2

Increased fluid accumulation in the cornea would result in

Accepted Answer

A)   a scattering of light rays.
B)   loss of pigment in the eye.
C)   a decrease in the strength of the tissue.
D)   an increase in the ability to transmit light to the retina.
E)   blockage of light rays.F) A) and E)
G) A) and C)

Question 3

Match the structure of the eye with the appropriate description.
-Cones

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

Question 4

Which ion causes depolarization in olfactory neurons?

Accepted Answer

A)   Na+
B)   Ca2+
C)   K+
D)   Both Na+ and K+ are correct.
E)   Both Na+ and Ca2+ are correct.F) B) and E)
G) C) and E)

Question 5

Which tastant is NOT correctly matched with its process of depolarization?

Accepted Answer

A)   Salty - Na+
B)   Umami - G protein
C)   Bitter - K+
D)   Sour - H+
E)   Sweet - G proteinF) A) and D)
G) A) and B)

Question 6

Which structure allows upper respiratory infections to spread from the throat to the middle ear?

Accepted Answer

A)   Oval window
B)   Cochlear duct
C)   External auditory canal
D)   Auditory tubeE) None of the above
F) All of the above

Question 7

Match the structure associated with hearing with the appropriate description.
-Organ of Corti

Accepted Answer

A)  Organ of hearing
B)  Passageway from the outside to the eardrum
C)  Interconnecting tunnels in the temporal bone
D)  Tiny bones in the middle ear
E)  Connecting chambers of inner ear filled with endolymphF) A) and E)
G) A) and D)

Question 8

The correct pathway for impulses leaving the retina is

Accepted Answer

A)   photoreceptors, ganglion cells, bipolar cells, and optic nerve.
B)   photoreceptors, bipolar cells, ganglion cells, and optic nerve.
C)   photoreceptors, bipolar cells, optic nerve, and ganglion cells.
D)   photoreceptors, ganglion cells, optic nerve, and bipolar cells.
E)   ganglion cells, bipolar cells, photoreceptors, and optic nerve.F) B) and E)
G) None of the above

Question 9

What connects the stereocilia in a hair bundle?

Accepted Answer

A)   Calcium channels
B)   Tip links
C)   Spiral ligaments
D)   Outer hair cellsE) A) and B)
F) A) and C)

Question 10

Olfactory adaptation occurs when odorant receptors become ________.

Accepted Answer

A)   saturated
B)   destroyedC) A) and B)
D) undefined

Question 11

The central olfactory cortex areas are located in the ________.

Accepted Answer

A)   frontal and temporal lobes
B)   frontal and parietal lobes
C)   parietal and temporal lobes
D)   temporal and occipital lobesE) C) and D)
F) A) and B)

Question 12

The lacrimal glands

Accepted Answer

A)   cause a sty when inflamed.
B)   constantly produce a fluid called tears.
C)   are located in the superomedial corner of the orbit.
D)   are innervated by parasympathetic fibers from the oculomotor nerve.
E)   produce sebum.F) B) and D)
G) B) and C)

Question 13

You taste a sauce with the "tip of your tongue." These taste sensations would be carried via the ________ cranial nerve.

Accepted Answer

A)   facial (VII) 
B)   vagus (X) 
C)   trigeminal (V) 
D)   glossopharyngeal (IX) 
E)   hypoglossal (XII) F) A) and B)
G) C) and E)

Question 14

Match the structure associated with hearing with the appropriate description.
-Auditory ossicles

Accepted Answer

A)  Organ of hearing
B)  Passageway from the outside to the eardrum
C)  Interconnecting tunnels in the temporal bone
D)  Tiny bones in the middle ear
E)  Connecting chambers of inner ear filled with endolymphF) C) and E)
G) All of the above

Question 15

The taste of salts results when ________ diffuses through channels leading to depolarization of the taste cell. Similarly, sour is tasted when ________ lead(s)  to the depolarization of taste cells.

Accepted Answer

A)   H+, G protein mechanism
B)   Na+, H+
C)   Na+, amino acids
D)   umami, H+E) A) and D)
F) B) and C)

Question 16

Match the eye structure with the appropriate description.
-Optic disc

Accepted Answer

A)  Blood vessels enter and the optic nerve exits here
B)  A small yellow spot near the center of the posterior retina
C)  The portion of the retina with the greatest visual acuity
D)  A jelly-like substance in the posterior cavity of the eye
E)  The fluid that fills the anterior cavity of the eyeF) A) and B)
G) A) and E)

Question 17

The superior olivary nucleus

Accepted Answer

A)   generates the endocochlear potential.
B)   receives impulses from the vestibular nerve.
C)   helps localize high-pitched tones near the apex of the basilar membrane.
D)   sends efferent impulses that inhibit all hair cells not vibrating maximally.
E)   stimulates additional hair cells.F) A) and B)
G) All of the above

Question 18

Suppose there was a drug that could dramatically decrease mucus secretion. Which of the following may be a side effect of this drug?

Accepted Answer

A)   Decreased mucus secretion would also decrease a person's ability to smell due to less fluid associated with the olfactory organ.
B)   Decreased mucus secretion would enhance a person's ability to smell due to less of a barrier between the odors and the olfactory organ.
C)   Decreased mucus secretion would enhance a person's sense of taste due to the lack of mucus blocking access to the taste receptors.
D)   Decreased mucus secretion would not affect a person's special senses.E) A) and D)
F) None of the above

Question 19

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

Question 20

Jessica is sitting in a cafe and excess lacrimal fluid is spilling over her lower palpebrae. This means that Jessica

Accepted Answer

A)   is crying.
B)   has a runny nose.
C)   is drooling.
D)   has an middle ear infection.E) B) and C)
F) A) and B)

Exam 15: The Special Senses

Match the structure of the eye with the appropriate description. -Cones

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The correct pathway for impulses leaving the retina is

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The central olfactory cortex areas are located in the ________.

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Match the structure associated with hearing with the appropriate description. -Auditory ossicles

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Match the structure associated with hearing with the appropriate description. -Organ of Corti

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

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The superior olivary nucleus

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Match the eye structure with the appropriate description. -Optic disc

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The taste of salts results when ________ diffuses through channels leading to depolarization of the taste cell. Similarly, sour is tasted when ________ lead(s) to the depolarization of taste cells.

Correct AnswerverifiedShow Answer

Which ion causes depolarization in olfactory neurons?

Correct AnswerverifiedShow Answer

You taste a sauce with the "tip of your tongue." These taste sensations would be carried via the ________ cranial nerve.

Correct AnswerverifiedShow Answer

Jessica is sitting in a cafe and excess lacrimal fluid is spilling over her lower palpebrae. This means that Jessica

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Which tastant is NOT correctly matched with its process of depolarization?

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What connects the stereocilia in a hair bundle?

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Which structure allows upper respiratory infections to spread from the throat to the middle ear?

Correct AnswerverifiedShow Answer

Increased fluid accumulation in the cornea would result in

Correct AnswerverifiedShow Answer

Arrange the following list of membranes in correct sequence in which they function during the process of hearing. (1) Tectorial membrane (2) Vestibular membrane (3) Tympanic membrane (4) Basilar membrane

Correct AnswerverifiedShow Answer

Olfactory adaptation occurs when odorant receptors become ________.

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Suppose there was a drug that could dramatically decrease mucus secretion. Which of the following may be a side effect of this drug?

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The lacrimal glands

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The taste of salts results when diffuses through channels leading to depolarization of the taste cell. Similarly, sour is tasted when lead(s) to the depolarization of taste cells.

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