| 1 | Activation of which of the following is normally associated with contraction of the smooth muscle of the gastrinointestinal tract? |
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| 2 | Which of the following is true of slow-wave electrical potentials in gastrointestinal smooth muscle? |
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| 3 | Which of the following would most likely decrease the number of spike potentials generated in the GI smoothmuscle? |
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| 4 | The basic process of digestion involves which of the following chemical reaction? |
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| 5 | In which of the following food substances is chewing essential for digestion? |
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| 6 | Which of the following is the main digestible carbohydrate normally consumed in the human diet? |
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| 7 | Which of the following chraracterizes carbohydrate digestion? |
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| 8 | A patient with trigeminal neurapraxia (temporary segmental demyelination of the trigeminal nerve leading to conduction difficulties) would have the greatest difficulty with which of the following activities? |
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| 9 | During which stage of swallowing is respiration inhibited? |
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| 10 | Inhibition of myenteric plexus leads to which of the following conditions? |
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| 11 | Lack of adeguate acid secretion by the gastric glands of the stomach has the greatest effect on the digestion of which of the following? |
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| 12 | Stomach emptying is controlled mostly by which of the following? |
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| 13 | The proenzyme pepsinogen is secreted mainly from which of the following structures? |
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| 14 | Stimulation of the submucosal plexus results in an increase in which of the following? |
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| 15 | Acid secretion in ulcer disease can be reduced by which of the following interventions? |
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| 16 | Digestion of which of the following occurs almost entirely in the small intestine? |
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| 17 | Inhibition of vagal function has the greatest effect on which segment of the alimentary tract? |
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| 18 | The volume of food in the stomach has which of the following effects on stomach emptying? |
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| 19 | In the condition of gastritis, which of the following describes the absorption of food products from the stomach? |
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| 20 | Which of the following cell types found in the intestinal tract secretes hydrochloric acid? |
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| 21 | An enterogastric reflex can be elicited by which of the following? |
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| 22 | Maxiumum activation of the proteolytic precursor pepsinogen to the active enzyme pepsin requires which of the following? |
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| 23 | A high level of sympathetic stimulation is most likely to cause which of the following effects in GI function? |
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| 24 | Which of the following substances stimulates the motor activity of the stomach? |
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| 25 | Which of the following describes the external anal sphincter? |
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| 26 | Which of the following substances is released from the mucosa of the duodenum in response to acidic gastric juices? |
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| 27 | Which of the following is true of the gastroenteric reflex? |
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| 28 | Sodium xport thru the brush border of the intestinal epithelial cells occurs by which of the following mechanisms? |
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| 29 | A 45 yr old man is found to have a condition in which the parietal cells of his stomach have been destryoed by an autoimmune mechanism. His diagnosis is chronic autoimmune gastritis. This condition is often associated with the following... |
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| 30 | Hypochlorhydria is a condition in which acid secretion by the stomach is greatly reduced. How does this condition affect the digestion and absorption of food? |
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| 31 | Congenital absence of the myenteric plexus would most likely lead to which of the following derangements in gastrointestinal function? |
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| 32 | Which of the following substances can inhibit small intestinal motility? |
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| 33 | Which of the following decreases blood flow to the villi of the small intestine? |
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| 34 | Which of the following structures in the GI tract is most at risk in this patient as a consequence of circulatory shock? (severed mesenteric artery) |
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| 35 | In the previous patient, which of the following describes peristaltic activity in the gut? |
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| 36 | Inhibition of the active xport of sodium thru the basolateral membrane of the small intestinal epithelial cells does which of the following? |
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| 37 | Which of the following is normally found in the abundance in the portal blood? |
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| 38 | Which of the following stimulates the release of digestive system enzymes from the acinar cells of the pancreas? |
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| 39 | Ganglionic blockade has the greatest effect on which of the following GI reflexes? |
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| 40 | Which of the following is paired correctly? |
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| 41 | Which of the following is not normally associated with activation of the peristaltic reflex? |
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| 42 | The secretion of bile is important for the proper digestion of which of the following? |
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| 43 | Which of the following is true of mass movements? |
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| 44 | Which of the following best characterizes the secretions of the small intestine? |
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| 45 | Which of the following best characterizes the secretions of large intestine? |
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| 46 | Which point in the figure above indicates the place in the colon where the colonic chyme is fluid? |
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