Tenth post lecture quiz PDF

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Tenth post lecture quiz 1) Which of the following is an organ of the alimentary canal? A) pancreas B) esophagus C) spleen D) liver 2) The sympathetic nervous system: A) increases digestive processes. B) has no effect on digestive processes. C) inhibits digestive processes. D) increases chemical digestive processes, but decreases mechanical digestive processes 3) From deep (innermost) to superficial (outermost), the layers of the organs of the alimentary canal are: 1. mucosa 2. muscularis externa 3. serosa (adventitia) 4. submucosa A) 1, 4, 2, 3 B) 3, 2, 4, 1 C) 1, 2, 4, 3 D) 1, 4, 3, 2 4) Jerry had an ulcer affecting the innermost epithelium of the stomach facing the lumen. Which layer of the alimentary canal was ulcerated? A) mucosa B) muscularis externa C) serosa (adventitia) D) submucosa 5) A disease that attacks and disables the myenteric plexus would: A) increase the motility of muscularis externa. B) decrease the motility of muscularis externa. C) increase gastric secretion. D) decrease gastric secretion.

6) Rolita had the mumps as a child and experienced swelling in the parotid glands. What do these glands secrete? A) tears B) sweat C) oil D) saliva 7) Which nervous system primarily controls and increases salivation? A) submucosal nervous system B) enteric nervous system C) sympathetic nervous system D) parasympathetic nervous system 8) Sjögren's syndrome is an autoimmune disorder in which the body's white blood cells attack and destroy exocrine glands, specifically the salivary glands. What could a patient with this syndrome expect? A) increased risk of dental cavities, or caries B) impaction of the wisdom teeth C) increased saliva production D) increased production of salivary amylase 9) Carbohydrate digestion begins in the: A) stomach. B) mouth. C) small intestine. D) esophagus.

10) What controls the passage of chyme from the last region of the stomach to the duodenum region of the small intestine? A) ileocecal valve B) lower esophageal sphincter C) gastroesophageal sphincter D) pyloric sphincter 11) What is released by the enteroendocrine cells of the gastric glands? A) gastrin B) pepsinogen C) hydrochloric acid (HCl) D) intrinsic factor

12) Chief cells release: A) intrinsic factor. B) mucus. C) pepsinogen. D) gastrin. 13) Which cells release hydrochloric acid (HCl) into the stomach? A) parietal cells B) chief cells C) enteroendocrine cells D) mucous neck cells 14) The conversion of pepsinogen into the active form, pepsin, requires: A) alkaline mucus. B) vitamin B12. C) an acidic pH. D) intrinsic factor. 15) What is accomplished by the enterogastric reflex? A) The enterogastric reflex stimulates hydrogen ion release. B) The enterogastric reflex decreases vagal activity and acid secretion by the stomach. C) The enterogastric reflex stimulates intestinal gastrin release. D) The enterogastric reflex stimulates histamine secretion. 16) What does the gastric pacemaker regulate? A) protein digestion by the stomach B) acid production by the stomach C) hormone secretion by the stomach D) churning and peristalsis of the stomach 17) Which of the following encourages gastric emptying? A) high degree of stretch in the duodenum wall B) low pH entering the duodenum C) low lipid composition in chyme entering the duodenum D) high solute concentration in chyme entering the duodenum

18) What is the final segment of the small intestine? A) pylorus B) ileum C) jejunum D) duodenum 19) Which nervous system controls the migrating motor complex of the small intestine? A) central nervous system B) enteric nervous system C) sympathetic nervous system D) somatic nervous system 20) Which of the following does NOT increase surface area in the small intestine? A) rugae B) microvilli C) circular folds D) villi 21) Which modification of the small intestine creates a brush border appearance upon microscopic examination? A) microvilli B) villi C) circular folds D) plicae circulares 22) Which hormone stimulates the acinar cells of the pancreas to secrete digestive enzymes? A) glucagon B) insulin C) secretin D) cholecystokinin (CCK) 23) What is responsible for the emulsification of lipids in the duodenum? A) secretin B) cholecystokinin (CCK) C) bile D) pancreatic juice

24) The removal of the gallbladder will affect: A) bile storage. B) bile production. C) carbohydrate digestion. D) motility of the stomach. 25) What enzyme catalyzes reactions that initiate carbohydrate digestion? A) pepsin B) salivary amylase C) trypsin D) pancreatic amylase 26) Ben had most of his stomach removed in an attempt for drastic weight loss. He is at the greatest risk for: A) gastroesophageal reflux disease (GERD). B) pernicious anemia. C) dehydration. D) lactose intolerance. 27) Which organ functions to absorb significant quantities of water, electrolytes, and vitamins? A) small intestine B) stomach C) large intestine D) spleen 28) Emulsification requires: A) bile salts. B) enzymes. C) nuclease. D) bile pigments....