Question 1

Intrinsic factor

Accepted Answer

A)  increases gastric motility. 
B)  causes the release of stomach acid. 
C)  facilitates the absorption of vitamin B12. 
D)  protects the stomach lining from the effects of stomach acid. 
E)  stimulates the synthesis of DNA. 
A)  increases gastric motility. 
B)  causes the release of stomach acid. 
C)  facilitates the absorption of vitamin B12. 
D)  protects the stomach lining from the effects of stomach acid. 
E)  stimulates the synthesis of DNA.

Question 2

Enzymes secreted by the small intestine include

Accepted Answer

A)  disaccharidases. 
B)  secretin. 
C)  cholecystokinin. 
D)  bile. 
E)  histamine. 
A)  disaccharidases. 
B)  secretin. 
C)  cholecystokinin. 
D)  bile. 
E)  histamine.

Question 3

Which of the following is a function performed by the digestive system?

Accepted Answer

A)  cellular respiration 
B)  food selection 
C)  elimination of undigested food 
D)  regulation of blood pH 
E)  integration and coordination of other systems 
A)  cellular respiration 
B)  food selection 
C)  elimination of undigested food 
D)  regulation of blood pH 
E)  integration and coordination of other systems

Question 4

Match the function with its appropriate description.
-mastication

Accepted Answer

A) movement of molecules from digestive tract into blood 
B) chewing of food 
C) muscular contractions that propel food 
D) removal of undigested wastes from body 
E) breakdown of organic molecules with digestive enzymes 
A) movement of molecules from digestive tract into blood 
B) chewing of food 
C) muscular contractions that propel food 
D) removal of undigested wastes from body 
E) breakdown of organic molecules with digestive enzymes

Question 5

How are ions such as sodium, potassium, calcium, magnesium, and phosphate transported from the intestinal lumen?

Accepted Answer

A)  passive transport 
B)  osmosis 
C)  diffusion 
D)  active transport 
A)  passive transport 
B)  osmosis 
C)  diffusion 
D)  active transport

Question 6

Which of the following structures has both endocrine and exocrine tissue?

Accepted Answer

A)  colon 
B)  liver 
C)  pancreas 
D)  gallbladder 
E)  spleen 
A)  colon 
B)  liver 
C)  pancreas 
D)  gallbladder 
E)  spleen

Question 7

Lipid-soluble drugs placed under the tongue

Accepted Answer

A)  are more easily swallowed. 
B)  can be detected by taste buds. 
C)  are quickly dissolved and absorbed. 
D)  are then easy to chew. 
E)  are not readily absorbed. 
A)  are more easily swallowed. 
B)  can be detected by taste buds. 
C)  are quickly dissolved and absorbed. 
D)  are then easy to chew. 
E)  are not readily absorbed.

Question 8

Arrange the ducts in the order that bile would pass through them when moving from the bile canaliculi to the small intestine without being stored in the gallbladder. (1) common bile duct
(2) common hepatic duct
(3) cystic duct
(4) left and right hepatic ducts

Accepted Answer

A)  3, 4, 2 
B)  3, 2, 1 
C)  4, 2, 1 
D)  4, 1, 2 
E)  1, 4, 2 
A)  3, 4, 2 
B)  3, 2, 1 
C)  4, 2, 1 
D)  4, 1, 2 
E)  1, 4, 2

Question 9

An organ is described as follows: cords of cells radiating outward from a central vein with sinusoids between the cords of cells. The organ having this histological structure is the

Accepted Answer

A)  pancreas. 
B)  spleen. 
C)  liver. 
D)  stomach. 
E)  gall bladder. 
A)  pancreas. 
B)  spleen. 
C)  liver. 
D)  stomach. 
E)  gall bladder.

Question 10

Bile is produced by cells of the

Accepted Answer

A)  duodenum. 
B)  liver. 
C)  gallbladder. 
D)  pancreas. 
E)  hepatopancreatic ampulla. 
A)  duodenum. 
B)  liver. 
C)  gallbladder. 
D)  pancreas. 
E)  hepatopancreatic ampulla.

Question 11

Which of the following are effects of aging on the digestive system?

Accepted Answer

A)  blood supply decreases 
B)  more likely to develop ulcerations and cancers 
C)  enamel on teeth becomes thinner 
D)  blood supply decreases and more likely to develop ulcerations and cancers. 
E)  blood supply decreases, more likely to develop ulcerations and cancers and enamel on teeth becomes thinner. 
A)  blood supply decreases 
B)  more likely to develop ulcerations and cancers 
C)  enamel on teeth becomes thinner 
D)  blood supply decreases and more likely to develop ulcerations and cancers. 
E)  blood supply decreases, more likely to develop ulcerations and cancers and enamel on teeth becomes thinner.

Question 12

Fatty acids and certain lipids in the duodenum initiate the release of

Accepted Answer

A)  secretin and gastrin. 
B)  cholecystokinin (CCK). 
C)  gastrin and histamine. 
D)  somatostatin and CCK. 
E)  insulin and glucagon. 
A)  secretin and gastrin. 
B)  cholecystokinin (CCK). 
C)  gastrin and histamine. 
D)  somatostatin and CCK. 
E)  insulin and glucagon.

Question 13

The enterogastric reflex can be triggered by

Accepted Answer

A)  distention of the duodenal wall. 
B)  the presence of food in the stomach. 
C)  increased pH in the duodenum. 
D)  the cerebral cortex. 
E)  the hormone secretin. 
A)  distention of the duodenal wall. 
B)  the presence of food in the stomach. 
C)  increased pH in the duodenum. 
D)  the cerebral cortex. 
E)  the hormone secretin.

Question 14

Which of the following is NOT a function of the stomach?

Accepted Answer

A)  storage 
B)  protein digestion 
C)  absorption of aspirin 
D)  segmental contractions 
A)  storage 
B)  protein digestion 
C)  absorption of aspirin 
D)  segmental contractions

Question 15

Match the process or term with the best description.
-chyme

Accepted Answer

A) swallowing 
B) chewing 
C) ball of food 
D) semifluid material 
E) phagocytosis 
A) swallowing 
B) chewing 
C) ball of food 
D) semifluid material 
E) phagocytosis

Question 16

What is the function of the gallbladder?

Accepted Answer

A)  produce bile 
B)  store bicarbonate 
C)  add pigment to bile 
D)  store and concentrate bile 
A)  produce bile 
B)  store bicarbonate 
C)  add pigment to bile 
D)  store and concentrate bile

Question 17

The myenteric plexus is found in the _____ of the digestive tract wall.

Accepted Answer

A)  mucosa 
B)  serosa 
C)  submucosa 
D)  muscularis 
E)  adventitia 
A)  mucosa 
B)  serosa 
C)  submucosa 
D)  muscularis 
E)  adventitia

Question 18

Nutrient-rich blood from the digestive tract comes to the liver by way of the

Accepted Answer

A)  hepatic artery. 
B)  hepatic portal vein. 
C)  hepatic vein. 
D)  inferior vena cava. 
E)  celiac trunk. 
A)  hepatic artery. 
B)  hepatic portal vein. 
C)  hepatic vein. 
D)  inferior vena cava. 
E)  celiac trunk.

Exam 24: Digestive System

Intrinsic factor

Enzymes secreted by the small intestine include

Which of the following is a function performed by the digestive system?

Match the function with its appropriate description. -mastication

How are ions such as sodium, potassium, calcium, magnesium, and phosphate transported from the intestinal lumen?

Which of the following structures has both endocrine and exocrine tissue?

Lipid-soluble drugs placed under the tongue

Arrange the ducts in the order that bile would pass through them when moving from the bile canaliculi to the small intestine without being stored in the gallbladder. (1) common bile duct (2) common hepatic duct (3) cystic duct (4) left and right hepatic ducts

An organ is described as follows: cords of cells radiating outward from a central vein with sinusoids between the cords of cells. The organ having this histological structure is the

Bile is produced by cells of the

Which of the following are effects of aging on the digestive system?

Fatty acids and certain lipids in the duodenum initiate the release of

The enterogastric reflex can be triggered by

Which of the following is NOT a function of the stomach?

Match the process or term with the best description. -chyme

What is the function of the gallbladder?

The myenteric plexus is found in the _____ of the digestive tract wall.

Nutrient-rich blood from the digestive tract comes to the liver by way of the

The Human Organism

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Integration of Nervous System Functions

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Functional Organization of the Endocrine System

Endocrine Glands

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