ATI RN
Digestive System Questions Questions
Question 1 of 5
Na+ and other carrier ions facilitate absorption of
Correct Answer: D
Rationale: Sodium ions (Na+) facilitate the absorption of amino acids and glucose through symport mechanisms.
Question 2 of 5
The term used to describe the stomach's expansion to accommodate volume without any rise in intraluminal pressure is referred to as:
Correct Answer: D
Rationale: Receptive relaxation allows the stomach to expand as food enters, mediated by the vagus nerve, without increasing pressure.
Question 3 of 5
Which of the following statements best describes the migrating motor complex (MMC)?
Correct Answer: D
Rationale: The MMC is a fasting-state motility pattern that clears residual contents, regulated by motilin, not active postprandially.
Question 4 of 5
What is the name of the tube that carries food from the mouth to the stomach?
Correct Answer: B
Rationale: The esophagus is the muscular tube that transports food from the mouth to the stomach. The trachea is for air, the duodenum is part of the small intestine, and 'food tube' is not a scientific term.
Question 5 of 5
What structure in the intestine increases surface area?
Correct Answer: B
Rationale: Villi are finger-like projections in the small intestine that increase surface area for absorption.