Sample-Digestive.docx

The organ that contains ascending, transverse and sigmoid parts is the: A. stomach B. small intestine C. large intestine D. liver 2. Which of the following arteries does NOT supply the stomach? A. left gastric B. splenic C. common hepatic D. superior mesenteric 3. Which of the fo...

The organ that contains ascending, transverse and sigmoid parts is the: A. stomach B. small intestine C. large intestine D. liver 2. Which of the following arteries does NOT supply the stomach? A. left gastric B. splenic C. common hepatic D. superior mesenteric 3. Which of the following structures is retroperitoneal? A. duodenum B. jejunum C. sigmoid colon D. stomach 4. Chemical digestion occurs in the: A. pancreas B. liver C. oral cavity D. esophagus 5. Pepsinogen is transformed to pepsin by secretions of: A. enterendocrine cells B. mucous neck cells C. parietal cells D. chief cells 6. Which of the following organs stores glycogen? A. pancreas B. gall bladder C. liver D. stomach 7. The process of taking in food into the digestive tract is called: A. absorption B. digestion C. defecation D. ingestion 8. Which of the following structures is involved with stimulating secretions from salivary glands? A. parasympathetic nerves B. thoracic splanchnic nerves C. the hormone secretin D. enteric nerves 9. The visceral peritoneum is located: A. Posterior to the duodenum B. Lining the anterior abdominal wall C. On the external surface of the stomach D. Internal to the serosa of the duodenum 10. Fat is broken down into smaller subunits by enzymes produced in the: A. gall bladder B. liver C. large intestine D. pancreas 11. The gastric phase of the regulation of gastric secretion induces the secretion of: A. hydrochloric acid B. pancreatic amylase C. brush border enzymes D. cholecystokinin 12. Which of the following is true regarding the wall of the GI tract? A. The muscularis externa is external to the serosa B. The muscularis externa is responsible for mechanical digestion C. The submucosa is the layer closest to the lumen D. The mucosa is responsible for producing the peritoneal fluid 13. Smooth muscle: A. is found within the external anal sphincter B. is not found within the wall of the esophagus C. is arranged in three layers within the wall of the stomach D. is controlled by the voluntary motor system 14. The tongue: A. Is important for swallowing B. Closes off the nasopharynx during swallowing C. Produces saliva when food is ingested D. Produces carbohydrate-digesting enzymes A. It receives digestive enzymes from the stomach mucosa B. It produces enzymes that are inserted on microvilli C. it receives secretions from the spleen that contain enzymes D. bile salts help to emulsify carbohydrates so that they can be easily digested 16. Mechanical digestion occurs in all of the following EXCEPT the: A. Oral cavity B. Stomach C. Pharynx D. Small intestine 17. Select the correct organ -- function combination. A. Liver -- production of lipases B. Pancreas -- production of hydrochloric acid C. Large Intestine -- absorption of water D. Stomach -- production of brush border enzymes 18. The duodenum: A. is part of the large intestine B. receives bile from the gall bladder C. contains rugae D. produces the hormone gastrin 19. Which of the following is NOT associated with the small intestine? A. Absorption of fats and water B. Peristalsis and segmentation C. Digestion of proteins and carbohydrates D. Production of amylase and pepsin 20. Which of the following functions is performed by the stomach? A. Ingestion B. Mechanical digestion C. Chemical digestion D. B and C 21. Cholecystokinin: A. Is released due to presence of fats B. Is produced in the ascending colon C. Stimulates contraction of the hepatopancreatic sphincter D. Does not function at the pancreas 22. Which of the following is NOT associated with the small intestine? A. Production of brush border enzymes B. Peristalsis and chemical digestion C. Possessing villi and microvilli D. Possessing three layers of smooth muscle 23. Proteins are chemically digested first in the: A. Oral cavity B. Esophagus C. Colon D. Stomach 24. The pharynx: A. Is involved with absorption of nutrients B. Is involved with swallowing C. Has cartilage in its wall D. Receives food from the esophagus 25. Haustra, cecum and splenic flexure are part of the: A. Large intestine B. Small intestine C. Stomach D. A and B are correct 26. Food from the ileum goes directly: A. through the pyloric sphincter B. to the jejunum C. to the large intestine D. to the transverse colon 27. Which of the following is true regarding the control of digestion? A. Mechanoreceptors detect the stretch of the walls as food enters the stomach B. The enteric nervous system is located in the walls of the liver and pancreas C. Chemoreceptors act as effectors by secreting enzymes into the duodenum D. The esophagus controls digestion by secreting hormones such as gastrin 28. Which of the following is true regarding bacteria in the digestive tract? A. All bacteria are killed by the hydrochloric acid in the stomach B. All bacteria in the intestines are beneficial to the body C. Most of the bacteria in the digestive tract reside in the esophagus D. Bacteria in the large intestine digest carbohydrates 29. Digestive activity in the small intestine is optimal when: A. The pancreas delivers pepsinogen and bicarbonate to the duodenum B. The pyloric sphincter allows a small amount of chyme to enter the duodenum C. The gall bladder produces the right amount of the bile to help digest fat D. The stomach delivers enough hydrochloric acid to digest proteins 30. Stratified squamous epithelium is found in the: A. Oral cavity B. Anal canal C. Stomach D. A and B are correct 31. Which of the following structures usually contains bile? A. Main pancreatic duct B. Common hepatic duct C. Stomach D. A and B are correct 32. Which of the following is the most inferior structure? A. Soft palate B. Oropharynx C. Laryngopharynx D. Tongue **Answers:** 1.C; 2.D; 3.A; 4.C; 5.C; 6.C; 7.D; 8.A; 9.C; 10.D; 11.A; 12.B; 13 D; 14.A; 15.B, 16.C, 17.C, 18.B, 19.D, 20.D, 21.A, 22.D, 23.D, 24.B, 25.A, 26.C, 27.A, 28.D, 29.B, 30.D, 31.B, 32.C