Test Bank Gastrointestinal Physiology Study Guide Questions And Correct Answers

A 60-year-old woman visits her physician because of shortness of breath, fatigue, loss of appetite, type 7 stools, and a sore mouth. The woman has a 25-year history of excessive alcohol consumption, but liver enzymes are within the reference range. Additional test results show little or no secretion of gastric acid following intravenous administration of pentagastrin. Which of the following best describes the cause of the patient's symptoms? A. Achalasia B. Duodenal ulcer C. Gastroesophageal reflux disease D. H. pylori infection E. Pernicious anemia {Ans: E. Pernicious anemia}Fill In the Blank: Type Correct / Incorrect Which of the following factors inhibit gastric acid secretion? 1) Somatostatin/ D cell 2) Cholecystokinin/ I cell 3) Histamine/ H cell {Ans: 1) Correct 2) Correct 3) Incorrect}Which of the following is the site of secretion of intrinsic factor? A. Gastric antrum B. Duodenum C. Ileum D. Colon E. Gastric fundus {Ans: E. Gastric fundus}Which of the following changes occurs during defecation? A. External anal sphincter is contracted B. Rectal smooth muscle is relaxed C. Intra-abdominal pressure is lower than when at rest D. Internal and external sphincter is relaxed E. Segmentation contraction predominate {Ans: D. Internal and external sphincter is