ATI LPN
NCLEX Questions Gastrointestinal System Questions
Question 1 of 5
Which of the following occurs within the submucosa in most regions of the GI tract:
Correct Answer: B
Rationale: The submucosal (Meissner's) plexus regulates glandular secretion and local blood flow within the submucosa.
Question 2 of 5
Taste buds occur most commonly:
Correct Answer: B
Rationale: Taste buds are primarily on fungiform and circumvallate papillae, not filiform.
Question 3 of 5
Taenia coli are:
Correct Answer: A
Rationale: Taenia coli are longitudinal muscle bands in the colon.
Question 4 of 5
Which of the following regions of the GI tract is not characterized by simple columnar epithelium on the mucosal surface?
Correct Answer: D
Rationale: The anal canal has stratified squamous epithelium, unlike the others with simple columnar.
Question 5 of 5
Which of the following regions of the GI tract is characterized by a thick mucosa densely packed with tubular glands containing a variety of cell types?
Correct Answer: B
Rationale: The stomach has thick mucosa with diverse glandular cells (parietal, chief, etc.).