23. The Digestive System
The Gallbladder
- Open QuestionMultiple ChoiceMore than one choice may apply.The pH of chyme entering the duodenum is adjusted bya. bile.b. intestinal juice.c. enzyme secretions from the pancreas.d. bicarbonate-rich secretions from the pancreas.
- Multiple Choice
Which of the following statements about bile is true?
- Multiple ChoiceWhich of the following is a function of the gallbladder?
- Open QuestionObstruction of the hepatopancreatic sphincter impairs digestion by reducing the availability ofa. bile and HCl,b. HCl and intestinal juice,c. pancreatic juice and intestinal juice,d. pancreatic juice and bile.
- Open Question
The primary hormone that triggers the secretion of pancreatic juice and bile is:
a. gastric inhibitory peptide.
b. cholecystokinin.
c. motilin.
d. somatostatin.
- Open Question
Mr. Williams presents to your clinic with a complaint of abdominal pain in the right upper quadrant. He says that the pain worsens when he eats, particularly when he eats fatty meals. He has noticed that his stool has been an unusual clay color recently. You perform an ultrasound of his abdomen and find that gallstones are blocking his common bile duct, preventing bile from entering the duodenum.
a. Why are his symptoms worse when he consumes a high-fat meal? Would you expect his symptoms to worsen or lessen when he consumes a meal consisting only of carbohydrates? Explain.
- Open QuestionMultiple ChoiceMore than one choice may apply.Which of these organs lies in the right hypochondriac region of the abdomen?a. Stomachb. Spleenc. Cecumd. Liver
- Multiple ChoiceEmulsification of which organic molecules would be most affected if the liver were severely damaged?
- Open Question
Mr. Williams presents to your clinic with a complaint of abdominal pain in the right upper quadrant. He says that the pain worsens when he eats, particularly when he eats fatty meals. He has noticed that his stool has been an unusual clay color recently. You perform an ultrasound of his abdomen and find that gallstones are blocking his common bile duct, preventing bile from entering the duodenum.
b. You test Mr. Williams's stool and find high amounts of undigested fats. Explain this finding.
- Multiple Choice
How would the gallbladder respond to an increase in cholecystokinin in the blood?
- Open QuestionExplain why activation of pancreatic enzymes is delayed until they reach the small intestine.
- Open Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
d. The exocrine cells of the pancreas and salivary glands are islet cells.
- Multiple Choice__________ is/are NOT found in pancreatic secretions.
- Open QuestionMultiple ChoiceMore than one choice may apply.Match the letter of the digestive organ shown in the figure with its function. ___ stores bile
- Open Question
Which of the following best describes the microscopic structure of the liver?
a. Hexagonal plates of hepatocytes surrounding a central vein with portal triads at each corner
b. Octagonal plates of hepatocytes surrounding a central artery with portal triads at each corner
c. Irregular groups of hepatocytes surrounding a central vein with bile ducts at each corner
d. Hexagonal plates of hepatocytes surrounding a portal vein with bile ducts at each corner