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A&p 2 Test 4 Digestive System

front 1 The primary dentition consists of _____ teeth.	back 1 20
front 2 Gross Anatomy of large intestine	back 2 a. right colic (hepatic) flexure b. Haustrum c. Ileocecal valve d. Appendix e. Left colic (splenic) flexure f. Epiploic appendages g. Tenia coli
front 3 Gross Anatomy of large intestine	back 3 a. Transverse colon b. Ileum c. Ascending colon d. Cecum e. Rectum f. Anal canal g. Sigmoid colon h. Descending colon
front 4 Anatomy of a tooth	back 4 a. Crown b. Neck c. Root d. Enamel e. Dentin f. Gingiva g. Cement h. Root canal i. Periodontal ligament

front 5 Absorbed lipids are transported from intestinal epithelial cells to the lymphatic system in what form? a. in the form of fatty acids and glycerol b. in the form of glycerol c. in the form of micelles d. in the form of chylomicrons	back 5 d. in the form of chylomicrons
front 6 Anterior view of mouth	back 6 a. Palatoglossal arch b. Tongue c. Gingivae d. Superior labial frenulum e. Palatopharyngeal arch f. Lingual frenulum g. Inferior labial frenulum
front 7 The primary function of the large intestine is:	back 7 defecation
front 8 Which digestive process normally occurs only in the mouth? a. digestion b. propulsion c. absorption d. ingestion	back 8 d. ingestion

front 9 Anatomy of the stomach	back 9 a. Lesser curvature b. Cardia c. Fundus d. Body e. Rugae f. Greater curvature g. Pyloric antrum h. Pyloric sphincter
front 10 Proteins are digested into:	back 10 Amino acids
front 11 Alimentary canal & *accessory organs	back 11 a. Sublingual gland b. Pharynx c. Pancreas* d. Parotid gland e. Submandibular gland f. Stomach
front 12 Saliva does not: a. moisten food. b. clean the mouth. c. dissolve food chemicals so that they can be tasted. d. aid in the chemical digestion of proteins.	back 12 d. aid in the chemical digestion of proteins.

front 13 Alimentary canal-basic structure	back 13 a. Myenteric nerve plexus b. Submucosal nerve plexus c. Epithelium d. Lamina propia e. Muscularis mucosae f. SUBMUCOSA g. Longitudinal muscle h. Circular muscle **4 basic layers: mucosa, submucosa, muscularis externa, serosa
front 14 pci	back 14 no data
front 15 Which part of the digestive system is the major location for absorption of the end products of digestion? a. liver b. large intestine c. stomach d. small intestine	back 15 d. small intestine
front 16 How are fats absorbed into the blood? a. in the form of fatty acids and glycerol b. in the form of micelles c. in the form of glycerol d. in the form of chylomicrons	back 16 d. in the form of chylomicrons

front 17 Which organ of the digestive tract is the body's major digestive organ?	back 17 small intestines
front 18 Which of the following are mismatched? a. lipase: fat digestion b. amylase: carbohydrate digestion c. nuclease: DNA and RNA digestion d. protease: lipid digestion	back 18 d. protease: lipid digestion
front 19 Which enzymes are responsible for the final chemical breakdown of carbohydrates, amino acids, and nucleic acids? a. proteases b. amylases c. brush border enzymes d. pancreatic enzymes	back 19 c. brush border enzymes
front 20 ______ can result if food passes too slowly through the large intestine. a. Irritable bowel syndrome b. Colitis c. Constipation d. Diarrhea	back 20 c. Constipation

front 21 The _______ circulation includes all of the arteries that serve the digestive organs. a. cardiac b. hepatic portal c. splanchnic d. peritoneal	back 21 c. splanchnic
front 22 The liver is able to regenerate even after 50% of its original mass is lost. T/F	back 22 True
front 23 Pic layers of stomach wall	back 23 no data
front 24 PIC Alimentary canal 2	back 24 no data

front 25 A function of the large intestine is to: a. make intrinsic factor. b. absorb nutrients. c. absorb water. d. produce vitamins	back 25 c. absorb water.
front 26 Which part of the digestive system is the major location for absorption of the end products of digestion? a. liver b. large intestine c. small intestine d. stomach	back 26 c. small intestine
front 27 What is the function of the bacterial flora that inhabit the large intestine? a. Bacterial flora facilitate nutrient absorption. b. Bacterial flora synthesize B-complex vitamins and some of the vitamin K needed by the liver. c. Bacterial flora release a bicarbonate-rich juice to help neutralize chyme from the stomach. d. Bacterial flora emulsify fats.	back 27 b. Bacterial flora synthesize B-complex vitamins and some of the vitamin K needed by the liver.
front 28 In the ________ of gastric secretion, chyme is moved into the duodenum. a. gastric phase b. intestinal phase c. reflux phase d. cephalic phase	back 28 b. intestinal phase

front 29 The innermost tissue layer of the alimentary canal is the __________. a. serosa b. submucosa c. muscularis d. mucosa	back 29 d. mucosa
front 30 PIC Gastric pits and gastric glands	back 30 no data
front 31 PIC Mesenteries of the abdom. digestive organs	back 31 no data
front 32 Bacteria that reside in the large intestine make vitamin K. T/F	back 32 T

front 33 The major means of propelling food through the digestive tract is ___________. a. segmentation b. peristalsis c. churning d. swallowing	back 33 b. peristalsis **Peristalsis is the primary means by which food is propelled through the digestive tract. Peristalsis consists of alternate waves of contraction and relaxation of muscles in the organ walls.
front 34 Bile is produced by the: a. gallbladder. b. pancreas. c. liver. d. stomach.	back 34 c. liver.
front 35 Which vitamins are made by the bacteria in the large intestine?	back 35 B complex and K
front 36 PIC The 4 layers of the alimentary canal	back 36 no data

front 37 The _______ is the serous membrane that lines the body wall. a. omenta b. parietal peritoneum c. visceral peritoneum d. mesentery	back 37 b. parietal peritoneum
front 38 Which of the following is not a structural modification of the small intestine to increase surface area? a. Microvilli b. Circular folds c. Rugae d. Villi	back 38 c. Rugae
front 39 Which of the following processes occurs only in the large intestine? a. propulsion b. absorption c. mechanical digestion d. defecation	back 39 d. defecation
front 40 The major means of propelling food through the digestive tract is __________.	back 40 peristalsis

front 41 Proteins are digested into ______. a. glycerol b. monosaccharides c. nucleotides d. amino acids	back 41 d. Amino acids
front 42 Blood drained from the stomach is more alkaline (basic) than blood that serves the stomach. T/F	back 42 True!
front 43 The_________ is the last segment of the small intestine. a. duodenum b. colon c. jejunum d. ileum	back 43 d. ileum
front 44 What role of the stomach is essential to life? a. production of VIP b. production of hydrochloric acid c. production of intrinsic factor d. production of chyme	back 44 c. production of intrinsic factor

front 45 Which of the following is a water-soluble vitamin? a. Vitamin E b. Vitamin D c. Vitamin A d. Vitamin C	back 45 d. Vita C
front 46 What is the major digestive function of the pancreas? a. production of bicarbonate ions b. production of insulin c. production of glucagon d. production of digestive enzymes	back 46 d. production of digestive enzymes
front 47 Which of the following is not a characteristic of the stomach? a. The stomach releases enzymes to digest carbohydrates. b. The stomach mucosa is folded into rugae. c. The stomach produces a double-layered coat of alkaline mucus. d. The stomach has three layers of muscle in the muscularis tunic.	back 47 a. The stomach releases enzymes to digest carbohydrates.
front 48 Which histological layer of the digestive tract is composed primarily of epithelial tissue? a. muscularis externa b. serosa c. mucosa d. submucosa	back 48 c. mucosa

front 49 Which of the following is considered to be an accessory organ of the digestive system? a. Stomach b. Mouth c. Gallbladder d. Esophagus	back 49 c. Gallbladder
front 50 Enzymatic breakdown of which of the following compounds doesn’t begin until it reaches the stomach? a. proteins b. carbohydrates c. lipids	back 50 a. proteins
front 51 Which of the following enzymes is important for breaking down protein? a. pepsin b. lipase c. amylase	back 51 a. pepsin **pepsin breaks down proteins in the stomach
front 52 Which of the following enzymes is important for the digestion of fat? a. pancreatic amylase b. trypsin c. pancreatic lipase d. pepsin	back 52 c. pancreatic lipase **pancreatic lipase is important for the digestion of fats. It is secreted by the pancreas and works in the small intestine.

front 53 In the small intestine, which of the following enzymes breaks down maltose? a. lactase b. glucoamylase c. sucrase d. maltase e. dextrinase	back 53 b. glucoamylase **the enzyme maltase breaks down the bonds between the two glucose molecules of the disaccharide maltose.
front 54 The breakdown products of which of the following are absorbed into lacteals? a. proteins b. fats c. carbohydrates	back 54 b. fats **chylomicrons are absorbed into lacteals because they are too large to pass through the basement membrane of a capillary and into the blood.
front 55 The pancreas secretes: a. procarboxypeptidase. b. secretin. c. bile. d. cholecystokinin (CCK).	back 55 a. procarboxypeptidase.
front 56 The nervous system does not regulate digestive activity. t/f	back 56 false

front 57

The _______ guards the entry of food into the stomach.

a. cardiac sphincter
b. pyloric sphincter
c. diaphragm
d. regulatory sphincter

back 57

a. cardiac sphincter