Question 1

The inferior esophageal sphincter is also known as the

Accepted Answer

A)   cardiac sphincter.
B)   pyloric sphincter.
C)   pharyngoesophageal sphincter.
D)   pharyngealgastric sphincter.
E)   esophageal hiatus.F) A) and C)
G) A) and E)

Question 2

Vitamin K and B vitamins produced by bacteria of the large intestine are absorbed into the blood.

Accepted Answer

A) True 
 B)False

Question 3

Proteolytic enzymes secreted from the pancreas are activated

Accepted Answer

A)   once they reach the pancreatic duct.
B)   within the lumen of the small intestine.
C)   in secretory vesicles within pancreatic secretory cells.
D)   once they reach the large intestine.E) A) and B)
F) A) and C)

Question 4

Amylase from saliva digests

Accepted Answer

A)   lipids.
B)   protein.
C)   glucose.
D)   starch.E) None of the above
F) All of the above

Question 5

Which is not a function of the digestive system?

Accepted Answer

A)   Absorption
B)   Ingestion
C)   Secretion
D)   Micturition
E)   EliminationF) A) and B)
G) A) and C)

Question 6

What is the primary function of the large intestine?

Accepted Answer

A)   Storage of vitamins and minerals
B)   Protein digestion and nutrient absorption
C)   Water and electrolyte absorption
D)   Secretion of water, salts, sodium bicarbonate, and enzymesE) A) and B)
F) All of the above

Question 7

Which of the following is the correct sequence of regions of the small intestine, from beginning to end?

Accepted Answer

A)   Ileum - duodenum - jejunum
B)   Jejunum - duodenum - ileum
C)   Duodenum - ileum - jejunum
D)   Ileum - jejunum - duodenum
E)   Duodenum - jejunum - ileumF) A) and B)
G) B) and C)

Question 8

Which bones form the hard palate?

Accepted Answer

A)   Palatine bones
B)   Maxillae and inferior nasal conchae
C)   Ethmoid and sphenoid bones
D)   Palatine bones and maxillae
E)   Maxillae and sphenoidF) A) and B)
G) B) and C)

Question 9

Pepsinogen is an

Accepted Answer

A)   active enzyme that is released in the small intestine and digests carbohydrates.
B)   inactive precursor to the enzyme pepsin that digests proteins in the stomach.
C)   active enzyme that digests proteins within the small intestine.
D)   inactive precursor to a nonspecific enzyme that is synthesized in the pancreas and released in the small intestine.E) A) and B)
F) All of the above

Question 10

The outer layer of the muscularis of the colon is discontinuous (does not entirely surround the colon), and forms the bundles of smooth muscles known as the teniae coli.

Accepted Answer

A) True 
 B)False

Question 11

The function of the muscularis of the GI tract wall is to both propel and mix the contents of the tract.

Accepted Answer

A) True 
 B)False

Question 12

Short reflexes of digestion involve the glossopharyngeal and vagus nerves.

Accepted Answer

A) True 
 B)False

Question 13

The pharynx is lined with a keratinized epithelium to protect against abrasion.

Accepted Answer

A) True 
 B)False

Question 14

Which duct transports bile to and from the gallbladder?

Accepted Answer

A)   Common bile duct
B)   Pancreatic duct
C)   Hepatopancreatic duct
D)   Cystic duct
E)   Hepatic ductF) A) and E)
G) All of the above

Question 15

In some digestive reflexes, the facial nerve stimulates salivary glands; the salivary glands are acting as

Accepted Answer

A)   afferents.
B)   receptors.
C)   efferents.
D)   effectors.
E)   control centers.F) A) and E)
G) A) and C)

Question 16

Secretin is a hormone that is secreted by the

Accepted Answer

A)   stomach.
B)   small intestine.
C)   large intestine.
D)   liver.
E)   pancreas.F) B) and E)
G) None of the above

Question 17

Which list of terms progresses from the most superficial structure to the deepest?

Accepted Answer

A)   Peritoneal cavity, visceral peritoneum, parietal peritoneum
B)   Parietal peritoneum, peritoneal cavity, visceral peritoneum
C)   Visceral peritoneum, peritoneal cavity, parietal peritoneum
D)   Visceral peritoneum, parietal peritoneum, peritoneal cavityE) B) and C)
F) A) and D)

Question 18

Duodenal glands (Brunner glands)  that secrete a viscous mucus into the small intestine are located in the

Accepted Answer

A)   serosa.
B)   adventitia.
C)   mucosa.
D)   submucosa.
E)   muscularis interna.F) B) and E)
G) All of the above

Question 19

The stomach is considered part of the upper gastrointestinal tract.

Accepted Answer

A) True 
 B)False

Question 20

Which region of the digestive tract moves material by peristalsis, haustral churning, and mass movement?

Accepted Answer

A)   Large intestine
B)   Small intestine
C)   Stomach
D)   Esophagus
E)   PharynxF) A) and E)
G) C) and E)

Exam 26: Digestive System

Vitamin K and B vitamins produced by bacteria of the large intestine are absorbed into the blood.

Correct AnswerverifiedShow Answer

Which duct transports bile to and from the gallbladder?

Correct AnswerverifiedShow Answer

The pharynx is lined with a keratinized epithelium to protect against abrasion.

Correct AnswerverifiedShow Answer

Duodenal glands (Brunner glands) that secrete a viscous mucus into the small intestine are located in the

Correct AnswerverifiedShow Answer

Amylase from saliva digests

Correct AnswerverifiedShow Answer

Which bones form the hard palate?

Correct AnswerverifiedShow Answer

In some digestive reflexes, the facial nerve stimulates salivary glands; the salivary glands are acting as

Correct AnswerverifiedShow Answer

Pepsinogen is an

Correct AnswerverifiedShow Answer

The outer layer of the muscularis of the colon is discontinuous (does not entirely surround the colon), and forms the bundles of smooth muscles known as the teniae coli.

Correct AnswerverifiedShow Answer

Proteolytic enzymes secreted from the pancreas are activated

Correct AnswerverifiedShow Answer

Which region of the digestive tract moves material by peristalsis, haustral churning, and mass movement?

Correct AnswerverifiedShow Answer

Short reflexes of digestion involve the glossopharyngeal and vagus nerves.

Correct AnswerverifiedShow Answer

Which of the following is the correct sequence of regions of the small intestine, from beginning to end?

Correct AnswerverifiedShow Answer

Secretin is a hormone that is secreted by the

Correct AnswerverifiedShow Answer

The function of the muscularis of the GI tract wall is to both propel and mix the contents of the tract.

Correct AnswerverifiedShow Answer

The stomach is considered part of the upper gastrointestinal tract.

Correct AnswerverifiedShow Answer

Which is not a function of the digestive system?

Correct AnswerverifiedShow Answer

What is the primary function of the large intestine?

Correct AnswerverifiedShow Answer

The inferior esophageal sphincter is also known as the

Correct AnswerverifiedShow Answer

Which list of terms progresses from the most superficial structure to the deepest?

Correct AnswerverifiedShow Answer

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