Question 1

Which of the following is not a trigger for mass movements of the colon?

Accepted Answer

A)  The gastrocolic reflex
B)  The duodenocolic reflex
C)  Chyme filling the duodenum
D)  Chyme filling the stomach
E)  The colorectal reflexF) C) and D)
G) A) and E)

Question 2

Chylomicrons are secreted from the basal surface of the absorptive cells and taken into the lacteal in the villus.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following statements is true regarding the sodium-glucose transport protein (SGLP) ?

Accepted Answer

A)  It is a uniport carrier.
B)  It is an antiport carrier.
C)  It uses solvent drag to transport glucose and sodium.
D)  It transports glucose and sodium from the intestinal lumen into the epithelial cells.
E)  It transports glucose from the intestinal lumen into the epithelial cells, and sodium in the opposite direction.F) B) and C)
G) C) and E)

Question 4

The large intestine absorbs water,fats,and salts.

Accepted Answer

A) True 
 B)False

Question 5

The __________ regulates the flow of contents from the stomach to the duodenum.

Accepted Answer

A)  gastric rugae
B)  antrum
C)  pyloric sphincter
D)  fundic region
E)  cardiac regionF) None of the above
G) A) and B)

Question 6

The surface of the tongue is covered with __________ stratified squamous epithelium,and has bumps called __________,where many taste buds can be found.

Accepted Answer

A)  keratinized; lingual papillae
B)  keratinized; lingual frenulum
C)  nonkeratinized; lingual papillae
D)  nonkeratinized; tonsils
E)  nonkeratinized; vallate papillaeF) C) and D)
G) A) and B)

Question 7

Which of the following statements regarding the migrating motor complex is true?

Accepted Answer

A)  It milks the chyme toward the colon.
B)  It allows a bolus to move down the esophagus.
C)  It churns and mixes residue in the descending colon.
D)  It churns and mixes a bolus with gastric juices.
E)  It propels pancreatic juice down the pancreatic duct.F) None of the above
G) C) and D)

Question 8

Which of the following is true regarding the difference between the mucosa of the small and large intestines?

Accepted Answer

A)  They both have villi, but only the small intestine has microvilli.
B)  The small intestine has deeper intestinal crypts than the large intestine.
C)  The small intestine has simple columnar epithelium and the large intestine does not.
D)  Intestinal crypts are only found in the large intestine.
E)  The large intestine has larger circular folds than the small intestine.F) B) and E)
G) B) and D)

Question 9

Which of the following is the correct list of tooth anatomy from the most superficial to the deepest?

Accepted Answer

A)  Cementum, root canal, enamel
B)  Enamel, root canal, dentin
C)  Dentin, enamel, cementum
D)  Enamel, dentin, pulp
E)  Crown, enamel, dentinF) D) and E)
G) B) and E)

Question 10

An example of chemical digestion is the break down of __________ into __________.

Accepted Answer

A)  proteins; nucleotides
B)  amino acids; proteins
C)  polysaccharides; amino acids
D)  nucleic acids; nucleotides
E)  fatty acids; cholesterolF) B) and C)
G) All of the above

Question 11

The small intestine begins with the duodenum,which is its longest segment.

Accepted Answer

A) True 
 B)False

Question 12

Infants have __________ deciduous teeth,whereas adults have __________ permanent teeth.

Accepted Answer

A)  20; 32
B)  16; 20
C)  28; 20
D)  32; 20
E)  32; 32F) C) and E)
G) A) and B)

Question 13

Enamel is found in the crown of a tooth,whereas dentin is part of both the crown and the root.

Accepted Answer

A) True 
 B)False

Question 14

A hepatic triad consists of __________.

Accepted Answer

A)  the right, left, and common hepatic ducts
B)  the common hepatic duct, cystic duct, and bile duct
C)  the hepatic portal vein and two hepatic ducts
D)  a bile ductule, a branch of the hepatic artery, and a branch of the hepatic portal vein
E)  a central vein, a hepatic lobule, and a hepatic sinusoidF) B) and E)
G) A) and D)

Question 15

The enteric nervous system regulates much of the digestive activity,but its action depends on the central nervous system.

Accepted Answer

A) True 
 B)False

Question 16

Lipids are transported to the surface of the intestinal absorptive cells by __________,and are then processed into __________.

Accepted Answer

A)  fat droplets; micelles
B)  fat droplets; chylomicrons
C)  micelles; fat globules
D)  micelles; chylomicrons
E)  fat globules; micellesF) D) and E)
G) All of the above

Question 17

Which of the following is not associated with the large absorptive surface of the small intestine?0-2013

Accepted Answer

A)  Circular folds (plicae circulares) 
B)  Intestinal length
C)  Microvilli
D)  Villi
E)  RugaeF) C) and E)
G) None of the above

Question 18

Both pancreatic juice and bile are secreted into the duodenum.

Accepted Answer

A) True 
 B)False

Question 19

The __________ phase is associated with food stretching the stomach and activating myenteric and vagovagal reflexes,which in turn stimulate gastric secretions.

Accepted Answer

A)  cephalic
B)  gastric
C)  intestinal
D)  gastrointestinal
E)  mesentericF) C) and D)
G) All of the above

Question 20

Defecation is stimulated by __________.

Accepted Answer

A)  the chemical composition of the feces
B)  bacterial flora in the feces
C)  water content of the feces
D)  lipid content in the feces
E)  stretching of the rectumF) None of the above
G) B) and C)

Exam 25: The Digestive System

Enamel is found in the crown of a tooth,whereas dentin is part of both the crown and the root.

Correct AnswerverifiedShow Answer

An example of chemical digestion is the break down of __________ into __________.

Correct AnswerverifiedShow Answer

Which of the following is true regarding the difference between the mucosa of the small and large intestines?

Correct AnswerverifiedShow Answer

Lipids are transported to the surface of the intestinal absorptive cells by __________,and are then processed into __________.

Correct AnswerverifiedShow Answer

Chylomicrons are secreted from the basal surface of the absorptive cells and taken into the lacteal in the villus.

Correct AnswerverifiedShow Answer

Both pancreatic juice and bile are secreted into the duodenum.

Correct AnswerverifiedShow Answer

The enteric nervous system regulates much of the digestive activity,but its action depends on the central nervous system.

Correct AnswerverifiedShow Answer

Infants have __________ deciduous teeth,whereas adults have __________ permanent teeth.

Correct AnswerverifiedShow Answer

Which of the following is not a trigger for mass movements of the colon?

Correct AnswerverifiedShow Answer

Which of the following statements is true regarding the sodium-glucose transport protein (SGLP) ?

Correct AnswerverifiedShow Answer

The __________ phase is associated with food stretching the stomach and activating myenteric and vagovagal reflexes,which in turn stimulate gastric secretions.

Correct AnswerverifiedShow Answer

Which of the following is not associated with the large absorptive surface of the small intestine?0-2013

Correct AnswerverifiedShow Answer

The large intestine absorbs water,fats,and salts.

Correct AnswerverifiedShow Answer

A hepatic triad consists of __________.

Correct AnswerverifiedShow Answer

The small intestine begins with the duodenum,which is its longest segment.

Correct AnswerverifiedShow Answer

The surface of the tongue is covered with __________ stratified squamous epithelium,and has bumps called __________,where many taste buds can be found.

Correct AnswerverifiedShow Answer

Which of the following is the correct list of tooth anatomy from the most superficial to the deepest?

Correct AnswerverifiedShow Answer

The __________ regulates the flow of contents from the stomach to the duodenum.

Correct AnswerverifiedShow Answer

Defecation is stimulated by __________.

Correct AnswerverifiedShow Answer

Which of the following statements regarding the migrating motor complex is true?

Correct AnswerverifiedShow Answer

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An example of chemical digestion is the break down of into .

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Lipids are transported to the surface of the intestinal absorptive cells by ,and are then processed into .

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Infants have deciduous teeth,whereas adults have permanent teeth.

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The surface of the tongue is covered with stratified squamous epithelium,and has bumps called ,where many taste buds can be found.

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