ATI LPN
Gastrointestinal System Questions and Answers Questions
Question 1 of 5
The bulge of the greater curvature of the stomach superior to the esophageal junction (or the big wheel) is the
Correct Answer: B
Rationale: The fundus is the superior bulge.
Question 2 of 5
The muscularis externa of the upper third of the esophagus has primarily
Correct Answer: A
Rationale: The upper third of the esophagus has skeletal muscle in its muscularis externa, allowing voluntary swallowing control.
Question 3 of 5
All lipids are absorbed through the brush border of the small intestine by the process of
Correct Answer: D
Rationale: Lipids, after emulsification by bile, are absorbed via simple diffusion across the brush border into enterocytes.
Question 4 of 5
Which of the following statements about a tooth is NOT correct?
Correct Answer: B
Rationale: The pulp cavity is vascular and innervated, not avascular, making this statement incorrect.
Question 5 of 5
The small, lymphatic capillaries that reside in the small intestines and absorb fats are known as
Correct Answer: D
Rationale: Lacteals are lymphatic capillaries in the villi of the small intestine that absorb dietary fats, making E the correct answer.