Human Physiology Chapter 20
Principles of Human Physiology, 4e (Stanfield)
Chapter 20 The Gastrointestinal System
20.1 Multiple Choice Questions
1) Which of the following is NOT a basic process of the gastrointestinal system?
A) digestion
B) filtration
C) absorption
D) secretion
E) motility
Answer: B
Diff: 4 Page Ref: 568
2) Which of the following is the correct order of the layers of the gastrointestinal tract wall, from lumen to external surface?
A) mucosa submucosa muscularis externa serosa
B) serosa muscularis externa submucosa mucosa
C) serosa mucosa submucosa muscularis externa
D) mucosa submucosa serosa muscularis externa
E) submucosa mucosa serosa muscularis externa
Answer: A
Diff: 4 Page Ref: 570
3) Which of the following correctly lists the three portions of the mucosa?
A) serosa, muscularis mucosae, muscularis externa
B) adventitia, muscularis externa, mucous membrane
C) muscularis mucosae, mucous membrane, submucosa
D) mucous membrane, lamina propria, muscularis mucosae
E) adventitia, lamina propria, muscularis externa
Answer: D
Diff: 4 Page Ref: 570
4) Enterocytes of the mucous membrane of the mucosal layer are classified as ________ cells if they secrete fluids and enzymes into the lumen and ________ cells if they release hormones into the bloodstream.
A) endocrine : absorptive
B) exocrine : endocrine
C) endocrine : exocrine
D) absorptive : endocrine
E) exocrine : absorptive
Answer: B
Diff: 3 Page Ref: 571
5) What layer of the mucosa is connective tissue that contains blood vessels and lymphatic vessels?
A) serosa
B) submucosal plexus
C) mucous membrane
D) lamina propria
E) muscularis mucosae
Answer: D
Diff: 4 Page Ref: 571
6) What is the thin layer of smooth muscle cells whose contraction stirs the lumenal contents and promotes contact with the mucosal membrane?
A) muscularis mucosae
B) muscularis externae
C) muscularis internae
D) serosa
E) myenteric
Chapter 20 The Gastrointestinal System
20.1 Multiple Choice Questions
1) Which of the following is NOT a basic process of the gastrointestinal system?
A) digestion
B) filtration
C) absorption
D) secretion
E) motility
Answer: B
Diff: 4 Page Ref: 568
2) Which of the following is the correct order of the layers of the gastrointestinal tract wall, from lumen to external surface?
A) mucosa submucosa muscularis externa serosa
B) serosa muscularis externa submucosa mucosa
C) serosa mucosa submucosa muscularis externa
D) mucosa submucosa serosa muscularis externa
E) submucosa mucosa serosa muscularis externa
Answer: A
Diff: 4 Page Ref: 570
3) Which of the following correctly lists the three portions of the mucosa?
A) serosa, muscularis mucosae, muscularis externa
B) adventitia, muscularis externa, mucous membrane
C) muscularis mucosae, mucous membrane, submucosa
D) mucous membrane, lamina propria, muscularis mucosae
E) adventitia, lamina propria, muscularis externa
Answer: D
Diff: 4 Page Ref: 570
4) Enterocytes of the mucous membrane of the mucosal layer are classified as ________ cells if they secrete fluids and enzymes into the lumen and ________ cells if they release hormones into the bloodstream.
A) endocrine : absorptive
B) exocrine : endocrine
C) endocrine : exocrine
D) absorptive : endocrine
E) exocrine : absorptive
Answer: B
Diff: 3 Page Ref: 571
5) What layer of the mucosa is connective tissue that contains blood vessels and lymphatic vessels?
A) serosa
B) submucosal plexus
C) mucous membrane
D) lamina propria
E) muscularis mucosae
Answer: D
Diff: 4 Page Ref: 571
6) What is the thin layer of smooth muscle cells whose contraction stirs the lumenal contents and promotes contact with the mucosal membrane?
A) muscularis mucosae
B) muscularis externae
C) muscularis internae
D) serosa
E) myenteric