The conjunctiva that lines the internal surface of the eyelids is termed the _____ conjunctiva.
A. palpebral
B. retinal
C. ocular
D. epithelial
E. visceral
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Question 2) In the olfactory epithelium, ______ cells act as stem cells to continually replace olfactory neurons.
Fill in the blank with correct word.
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Question 3) Olfactory receptor cells are _____ neurons.
A. multipolar
B. unipolar
C. bipolar
D. nonpolar
E. apolar
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Question 4) Which is not a cell type found in the olfactory epithelium?
A. Olfactory receptor cell
B. Supporting cell
C. Basal cell
D. Fungiform cell
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Question 5) The least numerous but the largest of the papillae are arranged as a V-shape on the posterior dorsal surface of the tongue. They contain the majority of taste buds and are called _____ papillae.
A. papiform
B. filiform
C. fungiform
D. vallate
E. foliate
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Question 6) The flavor of food depends upon
A. olfaction.
B. gustation.
C. both olfaction and gustation.
D. neither olfaction nor gustation.
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Question 7) Caffeine and unsweetened chocolate both taste bitter, as they are
A. alkaloids.
B. acids.
C. amino acids.
D. ions of heavy molecular weight.
E. carbohydrates.
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Question 8) There are five basic taste sensations. Select the one mismatched with its stimulating agent.
A. Sweet; organic compounds such as sugar
B. Sour; hydrogen ions from acids such as those in lemons
C. Salty; metal ions such as potassium or sodium
D. Bitter; acids such as those in toxins or poisons
E. Umami; amino acids such as glutamate or aspartate found in chicken soup
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Question 9) Which statement accurately describes structures at a taste bud?
A. The gustatory microvillus of a gustatory cell extends through the taste pore of a taste bud.
B. The gustatory villi of basal cells project through the taste bud to the surface of the epithelium.
C. The gustatory microvilus of a papilla projects through the gustatory pore to the gustatory glomerulus.
D. Basal cells contain villi that project through the pore of a papilla to make a taste bud.
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Question 10) The least developed of the papilla types are the ______ papillae, which house only a few taste buds during infancy and early childhood.
A. papiform
B. filiform
C. fungiform
D. vallate
E. foliate
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