Waves of muscular contractions that propel the contents of the digestive tract are called
A) segmentation.
B) pendular movements.
C) peristalsis.
D) churning movements.
E) mastication.
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Question 2) Between the bony and membranous labyrinth flows ________, while the membranous labyrinth contains ________.
A) perilymph; endolymph
B) endolymph; perilymph
C) endolymph; air
D) cerebrospinal fluid; perilymph
E) perilymph; air
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Question 3) Which of the following descriptions best matches the term submucosal plexus?
A) component of mucosa
B) sensory neural network
C) secretes a watery fluid
D) coordinates activity of muscularis externa
E) loose connective tissue layer containing blood vessels
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Question 4) Our inner ear is protected from very loud noises by
A) the tensor tympani stiffening the tympanic membrane.
B) the stapedius reducing movement of the stapes.
C) the tensory tympani stiffening the tympanic membrane and the stapedius reducing movement of the stapes.
D) cerumen in the auditory canal.
E) contraction of the auditory tube.
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Question 5) Which of the following is not a function of the digestive system?
A) mechanical processing
B) absorption
C) secretion
D) ingestion
E) filtration
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Question 6) Otitis media is
A) an infection of the pinna.
B) also known as swimmer's ear.
C) an infection of the middle ear.
D) an infection of semicircular canals.
E) a ringing in the ears.
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Question 7) Digestion refers to the
A) progressive dehydration of indigestible residue.
B) mechanical breakdown of food.
C) chemical breakdown of food.
D) mechanical and chemical breakdown of food.
E) release of water, acids, enzymes and buffers by organs.
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Question 8) Color blindness is a(n)
A) hereditary disease involving a lack of certain cones.
B) nutritional disease related to a deficiency of vitamin A.
C) progressive deterioration of the ganglion cells of the retina.
D) inflammatory reaction causing damage to the photoreceptors.
E) infection of the retina, resulting in destruction of the cones.
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Question 9) Which of the following is an accessory organ of digestion?
A) appendix
B) pancreas
C) spleen
D) colon
E) esophagus
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Question 10) Photoreceptors that convey our ability to see color are
A) rods.
B) cones.
C) amacrine cells.
D) horizontal cells.
E) bipolar cells.
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