ATI LPN
Gastrointestinal System Quiz Questions Questions
Question 1 of 5
For an organ embedded within the body wall, the tissue which forms the deepest layer (i.e., farthest from the inner core or lumen of the organ) is called the:
Correct Answer: D
Rationale: The adventitia, a connective tissue layer, anchors organs like the esophagus to surrounding structures.
Question 2 of 5
Permanent folds in the wall of the intestine, containing a core of submucosa, are called:
Correct Answer: B
Rationale: Plicae circulares are permanent folds in the small intestine with a submucosal core.
Question 3 of 5
Choose the best description of the fundic stomach.
Correct Answer: B
Rationale: The fundus has no villi, with glands (parietal, chief cells) and a uniform surface epithelium.
Question 4 of 5
Which of the following regions of the GI tract is characterized by short tubular invaginations (crypts or pits) which are not lined by dividing, differentiating cells?
Correct Answer: B
Rationale: Gastric pits in the stomach lack stem cells, unlike intestinal crypts.
Question 5 of 5
Ducts may be distinguished from secretory tissue because cells lining ducts:
Correct Answer: D
Rationale: Duct cells lack secretory vesicles, focusing on transport rather than secretion.