Question 1

Which of the following will stimulate intestinal motility?

Accepted Answer

A)   distension of the intestinal wall
B)   low pH
C)   presence of amino acids
D)   All of the choices will stimulate intestinal motilityE) None of the above
F) C) and D)

Question 2

Gastritis, peptic ulcers and gastric cancer can all be caused by

Accepted Answer

A)   Helicobacter pylori, a bacterium.
B)   increased secretion of gastric bicarbonate.
C)   pH of the stomach contents continuously greater than 4.
D)   increased mucus production by the neck cells.
E)   None of these choices is correct.F) C) and D)
G) A) and E)

Question 3

Salivary gland secretion is primarily controlled by the

Accepted Answer

A)   facial and glossopharyngeal nerves.
B)   vagus nerve.
C)   taste centers of the medulla.
D)   intercostal nerves.
E)   trigeminal nerve.F) C) and D)
G) B) and E)

Question 4

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

Accepted Answer

A)  swallowing
B)  chewing
C)  ball of food
D)  semifluid material
E)  phagocytosisF) None of the above
G) A) and B)

Question 5

All of the following are basic functions of the digestive system, except ___________.

Accepted Answer

A)   ingestion
B)   mastication
C)   digestion
D)   absorption
E)   circulationF) B) and E)
G) C) and D)

Question 6

Why does the superior part of the esophagus contain skeletal muscle instead of smooth muscle?

Accepted Answer

A)   The first phase of swallowing is under involuntary control.
B)   The second phase of swallowing is under voluntary control.
C)   The first phase of swallowing is under voluntary control.
D)   The second phase of swallowing is under involuntary control.E) B) and C)
F) C) and D)

Question 7

What portion of the small intestine is most distal from the pylorus of the stomach?

Accepted Answer

A)   jejunum
B)   duodenum
C)   ileum
D)   common bile duct
E)   hepatopancreatic ampullaF) All of the above
G) B) and E)

Question 8

Which of the following represents a mismatch in stomach wall structure?

Accepted Answer

A)   muscularis - two layers; both circular
B)   rugae - folds of mucosa and submucosa
C)   mucosa - gastric glands
D)   gastric pits - open onto surface of stomach mucosa
E)   lining - simple columnar epitheliumF) A) and B)
G) B) and D)

Question 9

The villi, microvilli and plicae circularis function to

Accepted Answer

A)   liberate hormones.
B)   promote peristalsis.
C)   produce bile.
D)   increase surface area for absorption.
E)   stimulate chemical digestion.F) A) and D)
G) A) and C)

Question 10

Which of the following is NOT a function of the small intestine?

Accepted Answer

A)   mastication of food
B)   absorption of nutrients
C)   complete digestion of food
D)   mixing by segmental contractionsE) None of the above
F) All of the above

Question 11

Segmental contractions are mixing contractions that occur predominantly in the _________________.

Accepted Answer

A)   oral cavity
B)   large intestine
C)   esophagus
D)   stomach
E)   small intestineF) A) and B)
G) B) and E)

Question 12

Match the secretion with the correct cell type.
-gastrin

Accepted Answer

A)  endocrine cells
B)  hepatocyte
C)  parietal cells
D)  acinar cells
E)  goblet cellsF) A) and E)
G) B) and C)

Question 13

What is the purpose of segmental contractions of the small intestine?

Accepted Answer

A)   propelling the chyme forward
B)   mixing of intestinal contents
C)   moving intestinal contents into the colon
D)   stretching the intestinal wallE) B) and C)
F) A) and D)

Question 14

Secretions that are added as food moves through the GI tract assist in

Accepted Answer

A)   liquefying and digesting the food.
B)   vitamin A and D production and storage.
C)   distribution of nutrients throughout the body.
D)   insulin production.
E)   bile production.F) A) and E)
G) C) and D)

Question 15

Which of the following would inhibit normal movements of the tongue?

Accepted Answer

A)   swollen lips
B)   lingual frenulum extending to tip of tongue
C)   decrease in number of taste buds
D)   loss of all teeth
E)   swollen tonsilsF) None of the above
G) C) and E)

Question 16

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

Accepted Answer

A)   mucosa
B)   serosa
C)   submucosa
D)   muscularis
E)   adventitiaF) A) and E)
G) A) and C)

Question 17

Match the enzyme or hormone with the organ that produces it.
-carboxypeptidase

Accepted Answer

A)  salivary glands
B)  stomach
C)  liver
D)  small intestine
E)  pancreasF) A) and D)
G) C) and D)

Question 18

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

Accepted Answer

A)  swallowing
B)  chewing
C)  ball of food
D)  semifluid material
E)  phagocytosisF) A) and D)
G) C) and D)

Question 19

Match the enzyme with the products of its digestive activity.
-lactase

Accepted Answer

A)  glucose and galactose
B)  amino acids
C)  fatty acids and glycerol
D)  maltose and isomaltose
E)  polysaccharides and disaccharidesF) A) and B)
G) C) and D)

Question 20

Match the organ with the function.
-duodenum

Accepted Answer

A)  produces bile
B)  stores and concentrates bile
C)  primary site of chemical digestion
D)  produces intrinsic factor
E)  bacterial decompositionF) A) and D)
G) A) and C)

Exam 24: Digestive System

Match the enzyme or hormone with the organ that produces it. -carboxypeptidase

Correct AnswerverifiedShow Answer

Which of the following is NOT a function of the small intestine?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is the purpose of segmental contractions of the small intestine?

Correct AnswerverifiedShow Answer

Secretions that are added as food moves through the GI tract assist in

Correct AnswerverifiedShow Answer

Gastritis, peptic ulcers and gastric cancer can all be caused by

Correct AnswerverifiedShow Answer

What portion of the small intestine is most distal from the pylorus of the stomach?

Correct AnswerverifiedShow Answer

Salivary gland secretion is primarily controlled by the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

All of the following are basic functions of the digestive system, except ___________.

Correct AnswerverifiedShow Answer

The villi, microvilli and plicae circularis function to

Correct AnswerverifiedShow Answer

Match the enzyme with the products of its digestive activity. -lactase

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Match the secretion with the correct cell type. -gastrin

Correct AnswerverifiedShow Answer

Which of the following represents a mismatch in stomach wall structure?

Correct AnswerverifiedShow Answer

Why does the superior part of the esophagus contain skeletal muscle instead of smooth muscle?

Correct AnswerverifiedShow Answer

Match the organ with the function. -duodenum

Correct AnswerverifiedShow Answer

Segmental contractions are mixing contractions that occur predominantly in the _________________.

Correct AnswerverifiedShow Answer

Which of the following will stimulate intestinal motility?

Correct AnswerverifiedShow Answer

Which of the following would inhibit normal movements of the tongue?

Correct AnswerverifiedShow Answer

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