Question 1

The superior portion of the esophagus contains smooth muscle in its wall.

Accepted Answer

A) True 
 B)False

Question 2

The negative feedback control of HCl secretion in the gastric phase of gastric regulation is mainly by

Accepted Answer

A)  decline in gastrin secretion.
B)  increase in gastrin secretion.
C)  increase in somatostatin secretion.
D)  Both decrease in gastrin secretion and increase in somatostatin secretion.E) A) and B)
F) A) and C)

Question 3

Bile is produced by

Accepted Answer

A)  Kupffer cells.
B)  gall bladder cells.
C)  hepatocytes.
D)  sinusoids.E) A) and D)
F) None of the above

Question 4

During the intestinal phase regulating gastric function

Accepted Answer

A)  the vagus nerve stimulates gastrin secretion.
B)  stomach distension stimulates acid secretion.
C)  vagal nuclei are stimulated by smelling food.
D)  gastric emptying is inhibiteD.E) None of the above
F) A) and B)

Question 5

Which of the following is NOT an effect of gastrin?

Accepted Answer

A)  stimulates parietal cells to secrete HCl
B)  stimulates chief cells to secrete pepsinogen
C)  stimulates secretion of pancreatic juice enzymes
D)  maintains structure of gastric mucosaE) A) and D)
F) A) and C)

Question 6

Mutating the gene encoding for the H+/K+ ATPase would block gastric HCl secretion.

Accepted Answer

A) True 
 B)False

Question 7

Bile pigment is a derivative of

Accepted Answer

A)  heme group without iron
B)  iron
C)  globin part of hemoglobin
D)  cholesterolE) A) and B)
F) All of the above

Question 8

The brush border is a term used to describe the mucosa of the small intestine.

Accepted Answer

A) True 
 B)False

Question 9

A _____________ has the following pattern of circulation: capillaries -> veins -> capillaries -> veins.

Accepted Answer

A)  portal system
B)  sinusoid
C)  lobule
D)  glomerulusE) A) and B)
F) C) and D)

Question 10

An important function of the liver is producing ketone bodies from fatty acids.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following gastrointestinal hormones is NOT secreted by the small intestine?

Accepted Answer

A)  secretin
B)  gastric inhibitory peptide
C)  gastrin
D)  cholecystokininE) All of the above
F) A) and B)

Question 12

Mutation of the gene encoding for cholecystokinin would limit pancreatic bicarbonate secretion.

Accepted Answer

A) True 
 B)False

Question 13

Aminopeptidase and carboxypeptidase are classified as endopeptidases.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is NOT part of the gastrointestinal tract?

Accepted Answer

A)  pharynx
B)  liver
C)  small intestine
D)  esophagusE) None of the above
F) All of the above

Question 15

The intrinsic regulation of the GI tract is conferred by the autonomic nervous system.

Accepted Answer

A) True 
 B)False

Question 16

Protection against atherosclerosis is believed to be associated with an

Accepted Answer

A)  elevated HDL-cholesterol.
B)  elevated LDL-cholesterol.
C)  elevated total cholesterol.
D)  elevated VLDL-cholesterol.E) A) and B)
F) None of the above

Question 17

Slow waves of the intestine are conducted through what type of cells?

Accepted Answer

A)  gastric cells
B)  microflora cells
C)  SXR Cells
D)  Cajal cellsE) B) and C)
F) C) and D)

Question 18

The majority of hydrolysis of disaccharides occurs by the actions of enzymes found

Accepted Answer

A)  in the pancreatic juice.
B)  in the brush border of the small intestine.
C)  in saliva.
D)  in the gastric mucosa.E) A) and B)
F) B) and C)

Question 19

__________ stimulates ECL cells to secrete histamine which stimulates HCl release from parietal cells.

Accepted Answer

A)  Secretin
B)  CCK
C)  Gastrin
D)  GhrelinE) A) and B)
F) B) and D)

Question 20

The ______ stimulates increased gastrin activity and increased movement of chyme into the duodenum.

Accepted Answer

A)  gastroileal reflex
B)  GLP-1 reflex
C)  ileogastric reflex
D)  GIP reflexE) B) and C)
F) C) and D)

Exam 18: The Digestive System

Bile is produced by

Correct AnswerverifiedShow Answer

Which of the following is NOT an effect of gastrin?

Correct AnswerverifiedShow Answer

Which of the following gastrointestinal hormones is NOT secreted by the small intestine?

Correct AnswerverifiedShow Answer

Mutating the gene encoding for the H+/K+ ATPase would block gastric HCl secretion.

Correct AnswerverifiedShow Answer

During the intestinal phase regulating gastric function

Correct AnswerverifiedShow Answer

The ______ stimulates increased gastrin activity and increased movement of chyme into the duodenum.

Correct AnswerverifiedShow Answer

Mutation of the gene encoding for cholecystokinin would limit pancreatic bicarbonate secretion.

Correct AnswerverifiedShow Answer

An important function of the liver is producing ketone bodies from fatty acids.

Correct AnswerverifiedShow Answer

Which of the following is NOT part of the gastrointestinal tract?

Correct AnswerverifiedShow Answer

The superior portion of the esophagus contains smooth muscle in its wall.

Correct AnswerverifiedShow Answer

Aminopeptidase and carboxypeptidase are classified as endopeptidases.

Correct AnswerverifiedShow Answer

A _____________ has the following pattern of circulation: capillaries -> veins -> capillaries -> veins.

Correct AnswerverifiedShow Answer

The intrinsic regulation of the GI tract is conferred by the autonomic nervous system.

Correct AnswerverifiedShow Answer

__________ stimulates ECL cells to secrete histamine which stimulates HCl release from parietal cells.

Correct AnswerverifiedShow Answer

The majority of hydrolysis of disaccharides occurs by the actions of enzymes found

Correct AnswerverifiedShow Answer

Slow waves of the intestine are conducted through what type of cells?

Correct AnswerverifiedShow Answer

Bile pigment is a derivative of

Correct AnswerverifiedShow Answer

The negative feedback control of HCl secretion in the gastric phase of gastric regulation is mainly by

Correct AnswerverifiedShow Answer

The brush border is a term used to describe the mucosa of the small intestine.

Correct AnswerverifiedShow Answer

Protection against atherosclerosis is believed to be associated with an

Correct AnswerverifiedShow Answer

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Mutating the gene encoding for the H⁺/K⁺ ATPase would block gastric HCl secretion.

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