Question 1

Which statement about sound localization is not true?

Accepted Answer

A)  It requires input from both ears.
B)  It is difficult to discriminate sound sources in the midline.
C)  It requires processing at the cortical level.
D)  It uses time differences between sound reaching the two ears.E) A) and B)
F) C) and D)

Question 2

Information from balance receptors goes directly to the ________.

Accepted Answer

A)  brain stem reflex centers
B)  visual cortex
C)  motor cortex
D)  back musclesE) A) and B)
F) None of the above

Question 3

What is the chemical composition of the rod pigment,rhodopsin,and how does it appear to act in the reception of light?

Accepted Answer

Rhodopsin is a combination of retinal an...

Question 4

In order for sound to reach the spiral organ (of Corti),the auditory ossicles must vibrate the oval window and set the endolymph in motion.

Accepted Answer

A) True 
 B)False

Question 5

Labyrinthitis is a medical condition often caused by viral infection,resulting in swelling and inflammation of the membranous labyrinth.Which of the following symptoms would you most associate with the condition of labyrinthitis?

Accepted Answer

A)  auditory hallucination
B)  loss of hearing
C)  ringing in the ears (tinnitus) 
D)  loss of balance and dizzinessE) A) and C)
F) C) and D)

Question 6

Select the correct statement about olfaction.

Accepted Answer

A)  Olfactory receptors have a high degree of specificity toward a single type of chemical.
B)  Substances must be volatile and hydrophobic in order to activate olfactory receptors.
C)  Some of the sensation of olfaction is actually one of pain.
D)  Olfactory adaptation is only due to fading of receptor cell response.E) C) and D)
F) B) and C)

Question 7

Select the correct statement about equilibrium.

Accepted Answer

A)  The weight of the endolymph contained within the semicircular canals against the maculae is responsible for static equilibrium.
B)  Hair cells of both types of equilibrium hyperpolarize only,resulting in an increased rate of impulse transmission.
C)  Cristae respond to angular acceleration and deceleration.
D)  Due to dynamic equilibrium,movement can be perceived if rotation of the body continues at a constant rate.E) None of the above
F) B) and D)

Question 8

What is the main function of the rods in the eye?

Accepted Answer

A)  vision in dim light
B)  accommodation for near vision
C)  depth perception
D)  color visionE) A) and B)
F) B) and C)

Question 9

Which of the following is the best explanation of why it is difficult to discriminate the color of an object at night?

Accepted Answer

A)  Rods contain a single kind of visual pigment.
B)  Cones come in three types,each sensitive to different wavelengths of light.
C)  The foveae are densely packed with cones.
D)  As many as 100 cones may converge on one ganglion cell.E) A) and C)
F) C) and D)

Question 10

Without a functioning crista ampullaris,the semicircular canals would not function.

Accepted Answer

A) True 
 B)False

Question 11

Flavor preferences,our likes and dislikes are said to have a "homeostatic value".Which of the following is the best example of this homeostatic value for taste preferences?

Accepted Answer

A)  The temperature,smell and texture of foods will influence its overall taste.
B)  Alkaloids are chemical compounds in plants that are frequently toxic "antifeedant" chemicals.Alkaloids are often unpleasantly bitter.
C)  Capsaicin is a chemical compound in chili peppers.Nociceptors in the mouth respond to this chemical with the sensation of heat.
D)  Monosodium glutamate is a food additive that stimulates umami taste (gustatory) cells.E) B) and C)
F) A) and C)

Question 12

Dark adaptation ________.

Accepted Answer

A)  involves accumulation of rhodopsin
B)  results in inhibition of rod function
C)  is much faster than light adaptation
D)  primarily involves improvement of acuity and color visionE) B) and C)
F) None of the above

Question 13

Which of the following could not be seen as one looks into the eye with an ophthalmoscope?

Accepted Answer

A)  fovea centralis
B)  macula lutea
C)  optic chiasma
D)  optic discE) A) and B)
F) A) and C)

Question 14

The tarsal plate of the eyelid ________.

Accepted Answer

A)  is composed of connective tissue surrounding a thin cartilage plate
B)  is connected to the levator palpebrae
C)  is connected to the superior rectus muscle
D)  assists in the act of winkingE) None of the above
F) A) and B)

Question 15

Light passes through the following structures in which order?

Accepted Answer

A)  vitreous humor,lens,aqueous humor,cornea
B)  aqueous humor,cornea,lens,vitreous humor
C)  cornea,vitreous humor,lens,aqueous humor
D)  cornea,aqueous humor,lens,vitreous humorE) A) and B)
F) A) and C)

Question 16

Taste is solely a response to chemicals dissolved in ________.

Accepted Answer

The answer of Taste is solely a response to chemicals...

Question 17

Visual processing in the thalamus does not contribute significantly to ________.

Accepted Answer

A)  high-acuity vision
B)  night vision
C)  movement perception
D)  depth perceptionE) None of the above
F) A) and C)

Question 18

Explain why your nose runs during and immediately after a good cry.

Accepted Answer

The tears flow into the lacrim...

Question 19

Which of the following is true about gustatory receptors?

Accepted Answer

A)  Complete adaptation occurs in about one to five minutes.
B)  All gustatory receptors have the same threshold for activation.
C)  The receptors generate an action potential in response to chemical stimuli.
D)  In order for a chemical to be sensed,it must be hydrophobic.E) A) and B)
F) All of the above

Question 20

During dark adaptation ________.

Accepted Answer

A)  the cones are activated
B)  rhodopsin accumulates in the rods
C)  the sensitivity of the retina decreases
D)  the rate of rhodopsin breakdown is acceleratedE) None of the above
F) B) and C)

Exam 15: The Special Senses

The tarsal plate of the eyelid ________.

Correct AnswerverifiedShow Answer

Taste is solely a response to chemicals dissolved in ________.

Correct AnswerverifiedShow Answer

Select the correct statement about olfaction.

Correct AnswerverifiedShow Answer

What is the chemical composition of the rod pigment,rhodopsin,and how does it appear to act in the reception of light?

Correct AnswerverifiedRhodopsin is a combination of retinal an...View AnswerShow Answer

Which of the following is true about gustatory receptors?

Correct AnswerverifiedShow Answer

Light passes through the following structures in which order?

Correct AnswerverifiedShow Answer

Information from balance receptors goes directly to the ________.

Correct AnswerverifiedShow Answer

Select the correct statement about equilibrium.

Correct AnswerverifiedShow Answer

Which of the following could not be seen as one looks into the eye with an ophthalmoscope?

Correct AnswerverifiedShow Answer

What is the main function of the rods in the eye?

Correct AnswerverifiedShow Answer

Visual processing in the thalamus does not contribute significantly to ________.

Correct AnswerverifiedShow Answer

Which statement about sound localization is not true?

Correct AnswerverifiedShow Answer

During dark adaptation ________.

Correct AnswerverifiedShow Answer

In order for sound to reach the spiral organ (of Corti),the auditory ossicles must vibrate the oval window and set the endolymph in motion.

Correct AnswerverifiedShow Answer

Labyrinthitis is a medical condition often caused by viral infection,resulting in swelling and inflammation of the membranous labyrinth.Which of the following symptoms would you most associate with the condition of labyrinthitis?

Correct AnswerverifiedShow Answer

Explain why your nose runs during and immediately after a good cry.

Correct AnswerverifiedThe tears flow into the lacrim...View AnswerShow Answer

Without a functioning crista ampullaris,the semicircular canals would not function.

Correct AnswerverifiedShow Answer

Flavor preferences,our likes and dislikes are said to have a "homeostatic value".Which of the following is the best example of this homeostatic value for taste preferences?

Correct AnswerverifiedShow Answer

Dark adaptation ________.

Correct AnswerverifiedShow Answer

Which of the following is the best explanation of why it is difficult to discriminate the color of an object at night?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Rhodopsin is a combination of retinal an...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The tears flow into the lacrim...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified