Chapter 22, Problem 22.14a
Which of the following is/are absorbed in the small intestine by the Na+/glucose cotransporter?
a. Glucose
b. Galactose
c. Fructose
d. Both a and b are correct.
e. All of the above are correct.
Video transcript
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.
c. Explain why his feces have become a clay color instead of a normal brown color.
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
Which of the following best describes the role of bile salts in lipid digestion?
a. Bile salts begin chemical digestion of lipids.
b. Bile salts bind to lipids and physically break them apart into monoglycerides and free fatty acids.
c. Bile salts bind to lipids and physically break them apart into smaller pieces.
d. Bile salts interact with pancreatic lipase and catalyze lipid breakdown.
The primary hormone that triggers the secretion of pancreatic juice and bile is:
a. gastric inhibitory peptide.
b. cholecystokinin.
c. motilin.
d. somatostatin.
Fill in the blanks: Lipids associate with bile salts in the small intestine to form_____ . In the enterocyte, lipids are packaged with other lipids into______.
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
b. The esophageal and pharyngeal phases of swallowing are mediated by the swallowing reflex of the brainstem and the enteric nervous system.