ATI LPN
ATI LPN Test Bank
Upper Gastrointestinal System NCLEX Questions Questions
Question 1 of 5
Which of these nutrients is absorbed mainly in the duodenum?
Correct Answer: B
Rationale: Iron is primarily absorbed in the duodenum.
Question 2 of 5
The __________ teeth are used for crushing or grinding food.
Correct Answer: B
Rationale: Molars are designed for grinding.
Question 3 of 5
The enzyme pepsin digests
Correct Answer: C
Rationale: Pepsin breaks down proteins.
Question 4 of 5
The enzyme amylase helps to digest
Correct Answer: A
Rationale: Amylase digests starches.
Question 5 of 5
What sequence of organs do substances pass through, as they move through the human digestive system?
Correct Answer: C
Rationale: The correct sequence is mouth, esophagus, stomach, small intestine, large intestine, anus. The pancreas and liver are accessory organs, not part of the direct path, making C the correct choice.