AN_S_214_Koltes_chelseap_Practice_Exam_1_Key.docx

A true b false 26 which of the following is not a

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a. True b. False 26. Which of the following is not a function of the stomach? a. The stomach mechanically digests food. b. The stomach chemically digests carbohydrates.-occurs in mouth c. The stomach serves as a temporary holding area for ingested food. d. The stomach produces intrinsic factor. 27. The phases of gastric secretion from first to last are: a. Gastric phase, cephalic phase, intestinal phase. b. Intestinal phase, gastric phase cephalic phase. c. Cephalic phase (brain), gastric phase (stomach), intestinal phase (intestines) d. Cephalic phase, intestinal phase, gastric phase. 28. The _______ is the first segment of the small intestine. a. Ileum b. Duodenum c. Ilium d. Jejunum
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29. Digestion of carbohydrates and proteins by brush border enzymes occurs within the ______ of the small intestine. a. Villi b. Microvilli c. Circular folds d. Goblet cells-mucus production 30. Bile is stored and concentrated in the ______. a. Gallbladder b. Stomach c. Liver-produces bile d. Pancreas 31. ______ is not found in pancreatic secretions. a. Bicarbonate-blood b. Cholecystokinin (CCK) c. Procarboxypeptidase d. Chymotrypsinogen 32. Pepsin enzymatically digests _____. a. Fat-lingual lipase (inactive in the mouth, needs acidic (low pH) environment of the stomach to become active pancreatic lipase b. Protein c. Carbohydrate-salivary amylase, pancreatic amylase d. Nucleic acids 33. In order to prevent self-digestion of the pancreas, activation of pancreatic proteases occurs in the:
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a. Duodenum b. Pancreas c. Stomach d. Gallbladder 34. During the intestinal phase of gastric regulation: a. Hormones reduce chief cell activity. b. Secretin causes more HCl release. c. The gastroeneteric reflex reduces stomach activity. d. The stomach is initially stimulated and later inhibited. 35. What is the main organic molecule digested in the stomach? a. Proteins b. Lipids c. Carbohydrates d. Nucleic acids 36. The propulsive function that occurs in the esophagus is called: a. Segmentation b. Peristalsis
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c. Ingestion d. Swallowing 37. Which regulatory chemical (AKA HORMONES) stimulates gastric gland activity and motility? a. Gastrin b. Secretin c. Histamine d. CCK 38. What would be the effect of stripping the small intestines of their villi? a. Greater absorption of nutrients would occur. b. Decreased surface area for absorption. c. A duodenal ulcer d. The large intestine would take over as the primary absorptive site. 39. Which of the following products does the stomach produce?
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