Question 1

What structures are responsible for detecting odor?

Accepted Answer

A)   receptor proteins on the olfactory cells
B)   receptor lipids on the olfactory cells
C)   receptor carbohydrates on the olfactory cells
D)   receptor proteins on the sclera
E)   receptor proteins on the ossiclesF) None of the above
G) A) and E)

Question 2

There is perhaps a fifth type of taste bud sensitive to umami.

Accepted Answer

A) True 
 B)False

Question 3

The structure that regulates the size of the opening for light in the eye is the

Accepted Answer

A)   pupil.
B)   retina.
C)   iris.
D)   ciliary muscle.
E)   lens.F) A) and B)
G) B) and C)

Question 4

Interoceptors are regulated by a positive feedback mechanism.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is not unique to the sense of smell?

Accepted Answer

A)   It can often be associated with vivid memories.
B)   Smell has direct connections to the limbic system and associated emotions.
C)   The sense of smell uses a variety of olfactory cell types to permit a wide combination of smell perceptions.
D)   Perception of smell is determined by which the pattern or signature of neurons that are stimulated.
E)   The sense of smell uses chemoreceptors.F) C) and D)
G) B) and D)

Question 6

From your understanding of the anatomy of the ear,what is the most likely explanation for a dog's ability to hear higher frequencies (pitch) ?

Accepted Answer

A)   more ear bones for greater amplification
B)   larger outer ears
C)   a thinner and therefore more sensitive tympanum (eardrum) 
D)   a wider range to the tectorial membrane and hair cells
E)   a more advanced brain section devoted to hearingF) A) and C)
G) A) and B)

Question 7

Deafness due to injury to the auditory center of the brain could be alleviated by the use of a hearing aid.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is NOT a true statement about the rod photoreceptors?

Accepted Answer

A)   They contain the pigment rhodopsin.
B)   They are functional only in dim light.
C)   They detect even the slightest motion.
D)   They detect fine detail.
E)   The stimulus formed results from the breakdown of rhodopsin.F) A) and C)
G) B) and D)

Question 9

Which type(s) of receptor is(are) found in the retina?

Accepted Answer

A)   rods and cones
B)   organ of Corti
C)   muscle spindles
D)   olfactory cells
E)   hair cells in ampullaeF) B) and E)
G) B) and D)

Question 10

Which health problem is associated with a decrease in the ability to taste certain foods?

Accepted Answer

A)   allergies
B)   upper respiratory tract infection
C)   brain tumors
D)   exposure to drugs
E)   all of these can decrease a persons ability to taste certain foodsF) C) and E)
G) A) and E)

Question 11

Which is not a general receptor found in the skin to detect pressure or fine touch?

Accepted Answer

A)   free nerve endings
B)   Merkel's disks
C)   Krause end bulbs
D)   Meissner's corpuscles
E)   Pacinian corpusclesF) None of the above
G) A) and B)

Question 12

What is the location of the sensory receptors associated with the sense of smell?

Accepted Answer

A)   roof of the nasal cavity
B)   inner lining of the nose
C)   back of the pharynx
D)   inferior portion of the nasal cavity
E)   frontal lobe of the cerebral hemisphereF) C) and D)
G) A) and B)

Question 13

The sclera is continuous with the

Accepted Answer

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

Question 14

Where are the photoreceptors of the eye located?

Accepted Answer

A)   retina
B)   optic nerve
C)   choroid layer
D)   sclera
E)   organ of CortiF) A) and E)
G) B) and E)

Question 15

Which of the following statements is true?

Accepted Answer

A)   Hearing is not dependent on the inner ear.
B)   All parts of the organ of Corti hear all ranges of sound.
C)   Loud music does not damage your ears.
D)   Hearing is dependent on mechanical pressure.
E)   Sound is similar to light insofar as it is transmitted through the vacuum of space.F) C) and D)
G) A) and C)

Question 16

Both eyes "see" the entire visual field.However,because of the optic chiasma

Accepted Answer

A)   only data from the left half of the retina goes to the visual cortex where it is "seen."
B)   data from the left half of the retina goes to the right visual cortex and data from the right half of the retina goes to the left visual cortex.
C)   data from the right half of the retina goes to the right visual cortex and data from the left half of the retina goes to the left visual cortex.
D)   the image on the back of the retina is inverted compared to reality.
E)   objects in the blind spot will disappear.F) B) and E)
G) A) and B)

Question 17

When you perceive a sense of taste,your brain

Accepted Answer

A)   responds to the one taste sense (sweet, sour, etc.)  that is sending the most signals.
B)   takes an average of the taste messages being received.
C)   uses memory to form a taste image after eliminating those signals (sweet, salty, etc.)  not received.
D)   identifies the chemical profile as a mix of sweet, sour, etc. and remembers the taste from previous experiences.
E)   takes a near infinite variety of taste signals and generalizes them into one of the four primary tastes.F) B) and D)
G) A) and C)

Question 18

The correct order in which a light ray enters the eye is

Accepted Answer

A)   cornea  →\rarr→  vitreous humor  →\rarr→  lens  →\rarr→ aqueous humor  →\rarr→  retina.
B)   lens  →\rarr→  vitreous humor  →\rarr→  cornea  →\rarr→  aqueous humor  →\rarr→  retina.
C)   lens  →\rarr→  cornea  →\rarr→ aqueous humor  →\rarr→  vitreous humor  →\rarr→  retina.
D)   cornea  →\rarr→  aqueous humor  →\rarr→  lens  →\rarr→ vitreous humor  →\rarr→  retina.
E)   lens  →\rarr→  aqueous humor  →\rarr→  cornea  →\rarr→  vitreous humor  →\rarr→  retina. F) A) and E)
G) A) and D)

Question 19

Which is NOT a correct association of sensory receptors?

Accepted Answer

A)   thermoreceptors-pressure waves sensed as "hearing"
B)   photoreceptors-sense of "vision"
C)   chemoreceptors-detection of carbon dioxide level in blood
D)   proprioceptors-sense of position
E)   mechanoreceptors-sense of touchF) A) and E)
G) None of the above

Question 20

The bones of the middle ear

Accepted Answer

A)   respond to a change in the position of the head.
B)   transmit sound waves.
C)   are sense receptors connected to the auditory nerve.
D)   are named the malleus, incus, and otolith.
E)   are connected to the tectorial membrane and oval window.F) A) and B)
G) C) and E)

Exam 18: Senses

Deafness due to injury to the auditory center of the brain could be alleviated by the use of a hearing aid.

Correct AnswerverifiedShow Answer

Both eyes "see" the entire visual field.However,because of the optic chiasma

Correct AnswerverifiedShow Answer

From your understanding of the anatomy of the ear,what is the most likely explanation for a dog's ability to hear higher frequencies (pitch) ?

Correct AnswerverifiedShow Answer

Which is not a general receptor found in the skin to detect pressure or fine touch?

Correct AnswerverifiedShow Answer

Which of the following statements is true?

Correct AnswerverifiedShow Answer

There is perhaps a fifth type of taste bud sensitive to umami.

Correct AnswerverifiedShow Answer

What is the location of the sensory receptors associated with the sense of smell?

Correct AnswerverifiedShow Answer

Which is NOT a correct association of sensory receptors?

Correct AnswerverifiedShow Answer

The sclera is continuous with the

Correct AnswerverifiedShow Answer

The correct order in which a light ray enters the eye is

Correct AnswerverifiedShow Answer

Which of the following is not unique to the sense of smell?

Correct AnswerverifiedShow Answer

The bones of the middle ear

Correct AnswerverifiedShow Answer

Which health problem is associated with a decrease in the ability to taste certain foods?

Correct AnswerverifiedShow Answer

The structure that regulates the size of the opening for light in the eye is the

Correct AnswerverifiedShow Answer

When you perceive a sense of taste,your brain

Correct AnswerverifiedShow Answer

Where are the photoreceptors of the eye located?

Correct AnswerverifiedShow Answer

Interoceptors are regulated by a positive feedback mechanism.

Correct AnswerverifiedShow Answer

Which of the following is NOT a true statement about the rod photoreceptors?

Correct AnswerverifiedShow Answer

What structures are responsible for detecting odor?

Correct AnswerverifiedShow Answer

Which type(s) of receptor is(are) found in the retina?

Correct AnswerverifiedShow Answer

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