There are three layers of nerve cells in the retina. Which cells in those layers form the optic nerve?
A) cones
B) bipolar cells
C) rods
D) ganglion cells
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Question 2) The oily substance found in tears to prevent the eyelids from sticking together is produced by the ________.
A) lacrimal glands
B) tarsal glands
C) ciliary gland
D) conjunctiva
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Question 3) What is the main function of the cones of the eye?
A) color vision
B) depth perception
C) vision in dim light
D) accommodation for near vision
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Question 4) When one has a cold or the flu, how is one's sense of taste affected?
A) unaffected
B) drastically increased
C) drastically reduced
D) minimally reduced
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Question 5) How many categories of tastes do we have?
A) three
B) four
C) five
D) six
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Question 6) The tip and sides of the tongue contain ________.
A) circumvallate papillae
B) fungiform papillae
C) filiform papillae
D) None of the listed responses is correct.
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Question 7) How often are gustatory cells replaced?
A) every 10-12 days
B) every 10-12 minutes
C) every 10-12 weeks
D) every 10-12 months
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Question 8) How long does olfactory adaptation occur?
A) a few days
B) a few hours
C) a few minutes
D) a few seconds
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Question 9) Where does olfactory adaptation occur?
A) olfactory receptor
B) along the olfactory pathway to the brain
C) olfactory epithelium
D) sustentacular cells
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Question 10) Where is olfaction perceived in the brain?
A) temporal lobe
B) frontal lobe
C) parietal lobe
D) occipital lobe
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