14.2   Multiple Choice

1) Which of the following is NOT associated with the mouth:

A) hard palate

B) rugae

C) vestibule

D) tongue

E) soft palate

2) Which one of the following represents the correct order through which food passes in the alimentary canal:

A) mouth, pharynx, esophagus, stomach, large intestine, small intestine

B) mouth, esophagus, pharynx, stomach, small intestine, large intestine

C) pharynx, mouth, esophagus, stomach, large intestine, small intestine

D) mouth, pharynx, esophagus, stomach, small intestine, large intestine

E) mouth, pharynx, esophagus, small intestine, stomach, large intestine

3) The structure that forms the anterior roof of the mouth is the:

A) uvula

B) soft palate

C) cheek

D) teeth

E) hard palate

4) The fold of mucous membrane that secures the tongue to the floor of the mouth and limits its posterior movements is called the:

A) lingual frenulum

B) hyoid bone

C) palatal frenulum

D) styloid bone

E) mandibular frenulum

5) Which one of the following is continuous with the esophagus:

A) nasopharynx

B) oropharynx

C) linguopharynx

D) laryngopharynx

E) esophagopharynx

6) Which of the following is the moist innermost layer that lines the alimentary canal:

A) mucosa

B) submucosa

C) myenteric nerve plexus

D) muscularis externa

E) serosa

7) The submucosal and myenteric nerve plexuses that help regulate the mobility and secretory activity of the GI tract organs are both part of the:

A) somatic nervous system

B) autonomic nervous system

C) sympathetic nervous system

D) fight-or-flight mechanism

E) central nervous system

8) Gastrin is produced in the stomach by:

A) submucosa cells

B) chief cells

C) enteroendocrine cells

D) mucous (neck) cells

E) parietal cells

9) The release of food from the stomach into the small intestine is regulated by the:

A) cardioesophageal sphincter

B) pyloric sphincter (valve)

C) ileocecal valve

D) internal anal sphincter

E) hepatopancreatic ampulla

10) Protein digestion begins in the:

A) mouth

B) esophagus

C) stomach

D) small intestine

E) large intestine