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

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

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

Question 4

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 cavity 
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 cavity

Question 5

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 6

The stomach is considered part of the upper gastrointestinal tract.

Accepted Answer

A) True 
 B)False

Question 7

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)  Pharynx 
A)  Large intestine 
B)  Small intestine 
C)  Stomach 
D)  Esophagus 
E)  Pharynx

Question 8

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

Question 9

Which is not a function of the digestive system?

Accepted Answer

A)  Absorption 
B)  Ingestion 
C)  Secretion 
D)  Micturition 
E)  Elimination 
A)  Absorption 
B)  Ingestion 
C)  Secretion 
D)  Micturition 
E)  Elimination

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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 enzymes 
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 enzymes

Question 12

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 duct 
A)  Common bile duct 
B)  Pancreatic duct 
C)  Hepatopancreatic duct 
D)  Cystic duct 
E)  Hepatic duct

Question 13

Short reflexes of digestion involve the glossopharyngeal and vagus nerves.

Accepted Answer

A) True 
 B)False

Question 14

Secretin is a hormone that is secreted by the

Accepted Answer

A)  stomach. 
B)  small intestine. 
C)  large intestine. 
D)  liver. 
E)  pancreas. 
A)  stomach. 
B)  small intestine. 
C)  large intestine. 
D)  liver. 
E)  pancreas.

Question 15

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

Question 16

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

Question 17

Amylase from saliva digests

Accepted Answer

A)  lipids. 
B)  protein. 
C)  glucose. 
D)  starch. 
A)  lipids. 
B)  protein. 
C)  glucose. 
D)  starch.

Question 18

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. 
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.

Question 19

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. 
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.

Question 20

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

Exam 26: Digestive System

The inferior esophageal sphincter is also known as the

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

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

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

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

The stomach is considered part of the upper gastrointestinal tract.

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

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

Which is not a function of the digestive system?

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

What is the primary function of the large intestine?

Which duct transports bile to and from the gallbladder?

Short reflexes of digestion involve the glossopharyngeal and vagus nerves.

Secretin is a hormone that is secreted by the

Which bones form the hard palate?

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

Amylase from saliva digests

Proteolytic enzymes secreted from the pancreas are activated

Pepsinogen is an

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.

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