Page 651 - Atlas of Histology with Functional Correlations

C. Cholecystokinin

D. Pancreatic polypeptide

E. Enterokinase

4. What changes take place when bile is stored in the gallbladder?

A. It becomes more diluted.

B. Sodium and chloride ions are added to bile.

C. More water is added to bile.

D. It becomes more concentrated.

E. It remains unchanged.

5. What hormone causes the gallbladder to contract and expel bile?

A. Secretin

B. Enterokinase

C. Pancreatic polypeptide

D. Trypsinogen

E. Cholecystokinin

ANSWERS

1. Correct answer: D. Increased levels of glucagon. This hormone increases

elevation of glucose by accelerating the conversion of glycogen, amino
acids, and fatty acids in the liver into glucose and its release into the blood
stream.

2. Correct answer: B. Beta cells. These cells release insulin during elevated
glucose levels, which then lowers glucose levels by its transport into

hepatocytes, muscle cells, and fat cells.

3. Correct answer: A. Somatostatin. This hormone is produced by delta cells
in the pancreatic islets. It has an inhibitory effect on cells that produce
insulin (B cells) and glucagon (A cells).

4. Correct answer: D. Bile becomes more concentrated. Through

transmembrane transport, sodium is actively transported from bile with
water and chloride following, resulting in concentrated bile.

5. Correct answer: E. Cholecystokinin. Entrance of fatty foods into the
duodenum induces the release of cholecystokinin that results in the

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