CHAPTER 19 THE DIGESTIVE SYSTEM
Multiple-Choice
Choose the one alternative that best completes the statement or answers the question.
1. All of the following are part of the gastrointestinal tract except the
A) stomach.
B) gallbladder.
C) esophagus.
D) small intestine.
E) pharynx.
Answer: B
Reference: Overview pf the Digestive System
Level of Difficulty: Easy
2. Which of the following is NOT an accessory structure of the digestive system?
A) liver
B) gallbladder
C) pancreas
D) spleen
E) teeth
Answer: D
Reference: Overview pf the Digestive System
Level of Difficulty: Easy
3. The layer of the GI tract wall that contains blood and lymphatic vessels is the
A) muscularis mucosa.
B) mucosa.
C) submucosa.
D) serosa.
E) muscularis.
Answer: C
Reference: Layers of the GI Tract and the Omentum
Level of Difficulty: Medium
4. The ability of the GI tract to mix and move material along its length is called
A) digestion.
B) ingestion.
C) absorption.
D) motility.
E) excitability.
Answer: D
Reference: Overview pf the Digestive System
Level of Difficulty: Easy
5. The greater omentum is part of the
A) mucosa.
B) liver.
C) mesentery.
D) peritoneum.
E) large intestine.
Answer: D
Reference: Layers of the GI Tract and the Omentum
Level of Difficulty: Medium
6. Enteric neurons are found in the
A) mucosa.
B) submucosa.
, C) muscularis.
D) serosa.
E) Both A and B.
Answer: B
Reference: Layers of the GI Tract and the Omentum
Level of Difficulty: Medium
7. The projection hanging from the soft palate is/are the
A) papillae.
B) uvula.
C) lingual frenulum.
D) fauces.
E) tonsils.
Answer: B
Reference: Mouth
Level of Difficulty: Medium
8. Which of the following contains taste buds?
A) papillae
B) uvula
C) tonsils
D) fauces
E) none of the above
Answer: A
Reference: Mouth
Level of Difficulty: Medium
9. The tongue is composed of
A) smooth muscle.
B) skeletal muscle.
C) loose connective tissue.
D) glandular tissue.
E) None of the above.
Answer: B
Reference: Mouth
Level of Difficulty: Medium
10. Salivary amylase secreted into the oral cavity starts the digestion of
A) proteins.
B) carbohydrates.
C) lipids.
D) amino acids.
E) glucose.
Answer: B
Reference: Mouth
Level of Difficulty: Medium
11. Teeth are primarily composed of a bone-like substance called
A) crown.
B) enamel.
C) cementum.
D) gingivae.
E) dentin.
Answer: E
Reference: Mouth
Level of Difficulty: Medium
12. The dentin of the root is covered by
A) crown.
B) enamel.
Multiple-Choice
Choose the one alternative that best completes the statement or answers the question.
1. All of the following are part of the gastrointestinal tract except the
A) stomach.
B) gallbladder.
C) esophagus.
D) small intestine.
E) pharynx.
Answer: B
Reference: Overview pf the Digestive System
Level of Difficulty: Easy
2. Which of the following is NOT an accessory structure of the digestive system?
A) liver
B) gallbladder
C) pancreas
D) spleen
E) teeth
Answer: D
Reference: Overview pf the Digestive System
Level of Difficulty: Easy
3. The layer of the GI tract wall that contains blood and lymphatic vessels is the
A) muscularis mucosa.
B) mucosa.
C) submucosa.
D) serosa.
E) muscularis.
Answer: C
Reference: Layers of the GI Tract and the Omentum
Level of Difficulty: Medium
4. The ability of the GI tract to mix and move material along its length is called
A) digestion.
B) ingestion.
C) absorption.
D) motility.
E) excitability.
Answer: D
Reference: Overview pf the Digestive System
Level of Difficulty: Easy
5. The greater omentum is part of the
A) mucosa.
B) liver.
C) mesentery.
D) peritoneum.
E) large intestine.
Answer: D
Reference: Layers of the GI Tract and the Omentum
Level of Difficulty: Medium
6. Enteric neurons are found in the
A) mucosa.
B) submucosa.
, C) muscularis.
D) serosa.
E) Both A and B.
Answer: B
Reference: Layers of the GI Tract and the Omentum
Level of Difficulty: Medium
7. The projection hanging from the soft palate is/are the
A) papillae.
B) uvula.
C) lingual frenulum.
D) fauces.
E) tonsils.
Answer: B
Reference: Mouth
Level of Difficulty: Medium
8. Which of the following contains taste buds?
A) papillae
B) uvula
C) tonsils
D) fauces
E) none of the above
Answer: A
Reference: Mouth
Level of Difficulty: Medium
9. The tongue is composed of
A) smooth muscle.
B) skeletal muscle.
C) loose connective tissue.
D) glandular tissue.
E) None of the above.
Answer: B
Reference: Mouth
Level of Difficulty: Medium
10. Salivary amylase secreted into the oral cavity starts the digestion of
A) proteins.
B) carbohydrates.
C) lipids.
D) amino acids.
E) glucose.
Answer: B
Reference: Mouth
Level of Difficulty: Medium
11. Teeth are primarily composed of a bone-like substance called
A) crown.
B) enamel.
C) cementum.
D) gingivae.
E) dentin.
Answer: E
Reference: Mouth
Level of Difficulty: Medium
12. The dentin of the root is covered by
A) crown.
B) enamel.
