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Problem 14c
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
c. Smooth muscle of the stomach contracts when food enters from the esophagus.
Problem 14d
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Control of gastric emptying into the duodenum is important to allow the chyme to be neutralized and diluted by pancreatic secretions.
Problem 14e
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.
Problem 15
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.
Problem 16
The common hepatic duct and main pancreatic duct enter into the:
a. Pyloric sphincter
b. Duodenum
c. Ileum
d. Cecum
Problem 17
Lipids associate with bile salts in the small intestine to form_____ . In the enterocyte, lipids are packaged with other lipids into______.
Problem 18
Which of the following occurs/occur during the cephalic phase of gastric acid secretion?
a. Stimulation of gastrin and histamine release
b. Direct stimulation of parietal cells
c. Inhibition of somatostatin release
d. Both a and b are correct
e. All of the above are correct
Problem 19
Which of the following statements about absorption in the small and large intestines is false?
a. Absorption of water occurs by secondary active transport.
b. Absorption of sodium ions creates an electrical gradient that drives absorption of chloride and bicarbonate anions.
c. Fat-soluble vitamins are absorbed with other lipids.
d. Vitamin B12 requires intrinsic factor to be absorbed in the small intestine.
Problem 20
The peritoneal cavity is located:
a. Around each of the digestive organs
b. Between layers of mesentery
c. Superior to the greater omentum
d. Between the parietal and visceral peritoneum
Problem 21
Which of the following stimuli mediates salivation?
a. Neurons of the ENS
b. ACh from parasympathetic neurons
c. The hormone secretin
d. Feedback from the cerebral cortex
Problem 22a
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The crown of a tooth is surrounded by an outer layer of pulp, which is the hardest substance in the body.
Problem 22b
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The filiform papillae of the tongue are keratinized, which makes them rough and able to assist in mechanical digestion.
Problem 22c
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
c. The three pairs of salivary glands are the parotid, submandibular, and sublingual glands.
Problem 22d
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The exocrine cells of the pancreas and salivary glands are islet cells.