Question 1

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 systemsF) A) and E)
G) None of the above

Question 2

The hepatic lobule is a _____ -sided structure with a(n)  _____ triad at each corner and a central vein located in the center of each lobule.

Accepted Answer

A)   6; portal
B)   5; portal
C)   6; venous
D)   5; arterial
E)   6; arterialF) A) and B)
G) None of the above

Question 3

The salivary glands that open into the oral cavity beside the frenulum of the tongue are the

Accepted Answer

A)   parotid glands.
B)   sublingual glands.
C)   submandibular glands.
D)   labial glands.
E)   lacrimal glands.F) B) and E)
G) A) and C)

Question 4

The gastric phase of gastric secretion

Accepted Answer

A)   decreases the release of gastrin in the stomach.
B)   is triggered by taste, sight, thought, or smell of food.
C)   is mediated by impulses on sympathetic nerves.
D)   leads to the greatest volume of gastric secretion.
E)   leads to the least volume of gastric secretion.F) A) and E)
G) C) and D)

Question 5

The hepatopancreatic ampulla is formed by the union of the

Accepted Answer

A)   pancreatic duct with the lacteals.
B)   greater duodenal papilla with the lesser duodenal papilla.
C)   common bile duct and pancreatic duct.
D)   cystic duct and interlobular duct.
E)   hepatic ducts and cystic ducts.F) B) and E)
G) C) and D)

Question 6

Which of the following pairs is mismatched?

Accepted Answer

A)   crown - enamel
B)   root - root canal
C)   alveoli - periodontal ligament
D)   pulp cavity - cementum
E)   apical foramen - blood supplyF) D) and E)
G) B) and D)

Question 7

Where does bile enter the duodenum?

Accepted Answer

A)   cystic duct
B)   hepatopancreatic ampulla
C)   hepatic duct
D)   duodenal ampullaE) All of the above
F) None of the above

Question 8

Bile

Accepted Answer

A)   digests proteins in the small intestine.
B)   emulsifies fats in the small intestine.
C)   is made by the gallbladder and stored by the liver.
D)   activates trypsin in the small intestine.
E)   activates the pancreas.F) A) and D)
G) B) and E)

Question 9

Which of the following is NOT a muscle of mastication?

Accepted Answer

A)   temporalis
B)   masseter
C)   medial and lateral pterygoids
D)   buccinatorE) A) and B)
F) B) and D)

Question 10

Which of the following does NOT illustrate digestion?

Accepted Answer

A)   polysaccharides  →\rightarrow→  disaccharides
B)   fat  →\rightarrow→  fatty acids and glycerol
C)   CO2 and H2O →\rightarrow→ carbohydrates
D)   protein  →\rightarrow→  amino acids
E)   disaccharides  →\rightarrow→  monosaccharides F) All of the above
G) A) and E)

Question 11

In order to remove a tumor in the muscular tunic of the stomach, a surgeon must cut through the

Accepted Answer

A)   lamina propria.
B)   submucosa.
C)   serosa.
D)   mucosa.
E)   lamina propriaF) C) and D)
G) B) and D) C

Question 12

Match the function with its appropriate description.
-chemical digestion

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 enzymesF) None of the above
G) A) and B)

Question 13

What structure moves food from the pharynx to the stomach?

Accepted Answer

A)   larynx
B)   laryngopharynx
C)   esophagus
D)   epiglottisE) B) and D)
F) B) and C)

Question 14

The portion of the digestive tract that receives food directly from the oral cavity is the

Accepted Answer

A)   nasopharynx.
B)   oropharynx.
C)   laryngopharynx.
D)   esophagus.
E)   larynx.F) B) and E)
G) A) and E)

Question 15

The movement of food through the digestive tract is

Accepted Answer

A)   segmentation.
B)   propulsion.
C)   mixing.
D)   mastication.E) A) and B)
F) A) and C) B

Question 16

When intestinal chyme is highly concentrated,

Accepted Answer

A)   water moves by osmosis into the lumen of the small intestine.
B)   water moves by osmosis from the intestinal lumen into the blood.
C)   water moves by endocytosis from intestinal lumen into interstitial spaces.
D)   water moves by exocytosis from interstitial spaces into the stomach.
E)   water does not move.F) C) and D)
G) None of the above A

Question 17

Arrange the following structures in order from the small intestine to the rectum. (1)  ascending colon
(2)  descending colon
(3)  sigmoid colon
(4)  transverse colon

Accepted Answer

A)   1, 2, 3, 4
B)   1, 4, 2, 3
C)   2, 3, 1, 4
D)   2, 4, 1, 3
E)   1, 4, 3, 2F) A) and B)
G) B) and D)

Question 18

Match the organ with the appropriate function.
-lips and cheeks

Accepted Answer

A)  secretion of saliva
B)  manipulation of food
C)  swallowing
D)  storage of bile
E)  protection of small intestinal wallF) C) and D)
G) None of the above

Question 19

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.F) A) and B)
G) C) and E)

Question 20

Which of the following is correctly matched?

Accepted Answer

A)   mucosa - controls peristalsis
B)   serosa - contains an extensive supply of nerves and blood vessels
C)   submucosa - lamina propria
D)   serosa - increased surface area
E)   muscularis - responsible for peristalsisF) A) and D)
G) C) and D)

Exam 24: Digestive System

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

Correct AnswerverifiedShow Answer

The hepatic lobule is a _____ -sided structure with a(n) _____ triad at each corner and a central vein located in the center of each lobule.

Correct AnswerverifiedShow Answer

The salivary glands that open into the oral cavity beside the frenulum of the tongue are the

Correct AnswerverifiedShow Answer

The gastric phase of gastric secretion

Correct AnswerverifiedShow Answer

The hepatopancreatic ampulla is formed by the union of the

Correct AnswerverifiedShow Answer

Which of the following pairs is mismatched?

Correct AnswerverifiedShow Answer

Where does bile enter the duodenum?

Correct AnswerverifiedShow Answer

Bile

Correct AnswerverifiedShow Answer

Which of the following is NOT a muscle of mastication?

Correct AnswerverifiedShow Answer

Which of the following does NOT illustrate digestion?

Correct AnswerverifiedShow Answer

In order to remove a tumor in the muscular tunic of the stomach, a surgeon must cut through the

Correct AnswerverifiedC

Match the function with its appropriate description. -chemical digestion

Correct AnswerverifiedShow Answer

What structure moves food from the pharynx to the stomach?

Correct AnswerverifiedShow Answer

The portion of the digestive tract that receives food directly from the oral cavity is the

Correct AnswerverifiedShow Answer

The movement of food through the digestive tract is

Correct AnswerverifiedB

When intestinal chyme is highly concentrated,

Correct AnswerverifiedA

Arrange the following structures in order from the small intestine to the rectum. (1) ascending colon (2) descending colon (3) sigmoid colon (4) transverse colon

Correct AnswerverifiedShow Answer

Match the organ with the appropriate function. -lips and cheeks

Correct AnswerverifiedShow Answer

The enterogastric reflex can be triggered by

Correct AnswerverifiedShow Answer

Which of the following is correctly matched?

Correct AnswerverifiedShow Answer

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The hepatic lobule is a _ -sided structure with a(n) _ triad at each corner and a central vein located in the center of each lobule.

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C

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B

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A

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