ATI RN
Digestive System Exam Questions Questions
Question 1 of 5
Which layer of GI tract forms the innermost lining and continuously secretes mucus?
Correct Answer: D
Rationale: The mucosa is the innermost layer of the GI tract, lined with epithelial cells that secrete mucus to protect the tract and lubricate food passage.
Question 2 of 5
Which process matches the definition: The process of taking food, drink or other substance into the body by swallowing or absorbing it?
Correct Answer: B
Rationale: Ingestion is the act of taking food into the body via the mouth.
Question 3 of 5
How is food processed to distribute nutrients to the body's cells?
Correct Answer: A
Rationale: Food is ingested (taken in), digested (broken down), absorbed (taken into blood), and assimilated (distributed to cells).
Question 4 of 5
Fungiform papillae are most numerous in:
Correct Answer: B
Rationale: Fungiform papillae are scattered across the oral part of the tongue but are most concentrated at the edges and tip, where taste perception is heightened.
Question 5 of 5
Taste buds are found on the following papilla EXCEPT:
Correct Answer: B
Rationale: Filiform papillae lack taste buds and are primarily involved in touch sensation, unlike the other papillae types.