Pancreas/Liver

• which of the following cell types found in the pancreas secrete bicarbonate (HCO3-)?

  1. alpha cells
  2. beta cells
  3. endocrine cells
  4. duct cells
  5. acinar cells

  duct cells
• secretin is released by endocrine cells in the duodenal mucosa in response to:

  1. distension of the stomach
  2. carbohydrate in the duodenum
  3. HCl in the duodenum
  4. gastrin in the ileum
  5. none of the above

  HCl in the duodenum
• cholecystokinin

  1. is secreted by endocrine cells in the duodenal mucosa
  2. stimulates pancreatic enzyme secretion
  3. causes contraction of the gallbladder
  4. secretion is stimulated by fat in the duodenum
  5. is accurately described by all of the above

  is accurately described by all of the above
• which of the following statements about pancreatic enzymes is FALSE?

  1. trypsinogen is secreted as an inactive enzyme
  2. pancreatic amylase digests carbohydrates
  3. pancreatic lipase is responsible for triglyceride digestion
  4. except for trypsinogen, the other proteolytic enzymes are secreted as active enzymes
  5. trypsinogen is activated by enterokinases


  except for trypsinogen, the other proteolytic enzymes are secreted as active enzymes
• which of the following correctly matches the pancreatic enzyme that aids in fatty acid digestion with the hormone that stimulates its secretion?

  1. lipase stimulated by secretin
  2. amylase stimulated by CCK
  3. lipase stimulated by CCK
  4. amylase stimulated by secretin
  5. all of these enzymes aid in fat digestion and are correctly matched

  lipase stimulated by CCK
• CCK inhibits

  1. gastric emptying
  2. pancreatic HCO3- secretion
  3. pancreatic enzyme secretion
  4. bile secretion
  5. relaxation of the sphincter of Oddi

  gastric emptying
• which of the following correctly matches the pancreatic enzyme that aids in protein digestion with the hormone that stimulates its secretion?

  1. amylase stimulated by glucose-dependent insulinotropic peptide (GIP)
  2. trypsin stimulated by CCK
  3. lipase stimulated by CCK
  4. elastaste stimulated by gum
  5. carboxypeptidase

  trypsin stimulated by CCK
• bile does NOT contain which of the following?

  1. lecithin
  2. pigments
  3. HCO3-
  4. HCl
  5. cholesterol

  HCl
• obstruction of the common bile duct would NOT result in:

  1. increased content of lipids in feces
  2. increased excretion of dietary cholesterol in feces
  3. increased excretion of bilirubin in feces
  4. gallstones
  5. oily feces

  increased excretion of bilirubin in feces
• which of the following is NOT a function of the liver?

  1. metabolic processing of carbohydrates, proteins, and fats
  2. secretion of proteolytic enzymes
  3. detoxification and/or degradation of body wastes, hormones, drugs, and foreign compounds
  4. synthesis of plasma proteins essential to the clotting process
  5. storage of glycogen, fats, iron, copper, and many vitamins

  secretion of proteolytic enzymes
• (T/F) the pancreas secretes proteolytic enzymes as zymogens to protect the intestinal mucosa


  true
• (T/F) the hepatocytes and the surrounding sinusoids are the functional units of the liver


  true
• (T/F) the gallbladder stores bile

  true
• (T/F) the pancreas serves both the endocrine and digestive system is therefore a mixed gland; the liver serves only the digestive system and is not a mixed gland


  false