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Test Bank Gastrointestinal Physiology an Integrated Approach 8th Edition (Silverthorn, 2019)
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Test Bank Gastrointestinal Physiology an Integrated Approach 8th Edition (Silverthorn, 2019)
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Test Bank Gastrointestinal Physiology an Integrated Approach 8th Edition (Silverthorn, 2019) Secretin stimulates the secretion of bicarbonate from the pancreas because s ecretin causes sodium channels to open. A. Both the statement and the reason are correct and related B. Both the statement and the reason are correct but not related C. The statement is correct, but the reason is not D. The statement is not correct, but the reason is correct E. Neither the statement nor the reason is correct - ✔✔ ANSW✔✔ C. The statement is correct, but the reason is not Secretion of which of the following substances is inhibited by low pH? A. Secretin B. Cholecystokinin (CCK) C. Gastrin D. Vasoactive intestinal peptide (VIP) E. Gastric inhibitory peptide (GIP) - ✔✔ ANSW✔✔ C. Gastrin Slow wave frequency is greatest in which of the following structures? A. Duodenum B. External anal sphincter C. Ileum D. Jejunum E. Sigmoid colon - ✔✔ ANSW✔✔ A. Duodenum Slow waves in small intestinal smooth muscles cells are A. Action potentials B. Oscillating resting membrane potentials C. Phasic contractions D. Tonic contractions E. Oscillating release of cholecystokinin ( CCK) - ✔✔ ANSW✔✔ B. Oscillating resting membrane potentials Smooth muscle slow waves without spike potentials are most likely to stimulate smooth muscle contraction in which of the following g Which of the following weakens the gastric mucosal barrier? A. Bile salts B. Epid ermal growth factor C. Gastrin D. Mucus - ✔✔ ANSW✔✔ A. Bile salts Which of the following would eliminate receptive relaxation of the lower esophageal sphincter and fundus portion of the stomach? A. Increased serum gastrin B. Increased serum secretin C. Sym pathectomy D. Sympathetic stimulation E. Vagal stimulation F. Vagotomy - ✔✔ ANSW✔✔ F. Vagotomy Which one of the following is the main excitatory neurotransmitter to gut smooth muscle? A. Acetylcholine B. Glucose -dependent insulinotropic peptide C. Noradrenalin D. Substance P A 2-year -old boy swallows a penny. The boy's mother checks his stool for several days, but the penny does not appear. Meanwhile, the boy has lost his appetite and seems to have difficulty eating. When a foreign object is swallowed, it often lodges at which portion of the gut? A. Anus B. Duodenum C. Ileocecal sphincter D. Lower esophageal sphincter E. Pharynx F. Pyloric sphincter G. Rectum - ✔✔ ANSW✔✔ D. Lower esophageal sphincter A 22 -year -old man is fed intravenously for several weeks following a severe automobile accident. The intravenous feeding leads to atrophy of the gastrointestinal mucosa most likely because the blood level of which of the following hormones is reduced? A. Cholecystokinin only B. Gastrin only C. Secretin only D. Gastrin and cholecystokinin E. Gastrin and secretin F. Secretin and cholecystokinin - ✔✔ ANSW✔✔ B. Gastrin only A 23 -year -old man consumes a meal containing a large amount of fat. At which of the following locations are bile salts most likely to be absorbed? A. A B. B C. C D. D - ✔✔ ANSW✔✔ D. D A 24 -year -old male graduate student participates in a clinical research study on intestinal motility. Peristalsis of the small intestine A. Involves contraction of smooth muscle behind the food bolus and relaxation of smooth muscle in front of the bolus B. Mixes the food bolus C. Is coordinated by the central nervous system (CNS) D. Involves contraction of smooth muscle behind and in front of the food bolus E. Involves relaxation of smooth muscle simultaneously throughout the small intestine - ✔✔ ANSW✔✔ A. Involves contraction of smooth muscle behind the food bolus and relaxation of smooth A 24 -year -old marine visits a physician because of nausea, abdominal pain, and type 7 stools. The marine had waded through rivers during combat missions that conta ined raw sewage from the local population. The physician administers a proton pump inhibitor and several antibiotics, and within a few weeks, all the symptoms go away. Which of the following best describes the condition for which the marine was treated? A. Excessive alcohol consumption B. Helicobacter pylori infectionVoordelen van het kopen van samenvattingen bij Stuvia op een rij:
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