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9:59Which 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 common hepatic duct and main pancreatic duct enter into the:
a. Pyloric sphincter
b. Duodenum
c. Ileum
d. Cecum
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
e. During feeding, the small intestine exhibits motion in the migrating motor complex pattern.
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.
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 statements about accessory organ secretions is not true?
a. Hepatocytes produce bile, which drains out of the liver via the common hepatic ducts.
b. Saliva contains secretory IgA and lysozyme, which play an important role in preventing the growth of pathogenic bacteria in the oral cavity.
c. Pancreatic juice contains digestive enzymes and bicarbonate ions to neutralize the acidic chyme.
d. The gallbladder produces bile, which drains out of the gallbladder via the cystic duct.
