ATI LPN
Chapter 15 The Gastrointestinal System Review Questions Questions
Question 1 of 5
The term mucosa (mucous membrane) means:
Correct Answer: D
Rationale: Mucosa refers to the moist lining of hollow organs open to the exterior, such as the GI tract, respiratory tract, etc., encompassing all these features broadly.
Question 2 of 5
The mesentery and lining of the peritoneal cavity, like the outermost layer of the digestive tract, consist of:
Correct Answer: B
Rationale: The mesentery and peritoneal lining are serosa, not mucosa, secreting serous fluid.
Question 3 of 5
The whitish tips of filiform papillae consist of:
Correct Answer: A
Rationale: The whitish appearance results from keratinized stratified squamous epithelium.
Question 4 of 5
Lymphatic vessels within intestinal villi, which transport lipids to the circulatory system, are called:
Correct Answer: D
Rationale: Lacteals absorb dietary lipids within villi.
Question 5 of 5
Which of the following epithelial types is most closely associated with passive protection, without specialization for either secretion or absorption, as in the esophagus and anal canal?
Correct Answer: B
Rationale: Stratified squamous epithelium protects against abrasion in the esophagus and anal canal.