ATI LPN
NCLEX Questions Gastrointestinal System Questions
Question 1 of 5
The portion of the small intestine that is attached to the pylorus of the stomach is the
Correct Answer: A
Rationale: The duodenum connects to the pylorus.
Question 2 of 5
Chemical digestion of carbohydrates begins in the
Correct Answer: D
Rationale: Carbohydrate digestion starts in the oral cavity with salivary amylase breaking down starches into simpler sugars.
Question 3 of 5
Two cellular activities that support human life are absorption and assimilation. What is needed for assimilation but not for absorption?
Correct Answer: A
Rationale: Assimilation involves using absorbed nutrients to synthesize new molecules, requiring enzymes, whereas absorption is the uptake of nutrients into the blood, not requiring synthesis, making A correct.
Question 4 of 5
Gastric glands increase their secretory activity in response to a hormone released from the
Correct Answer: B
Rationale: Gastrin, released by G cells in the stomach, stimulates gastric gland secretion, particularly of acid and enzymes.
Question 5 of 5
The 'ball' of food that is swallowed and moved through the esophagus is called the
Correct Answer: C
Rationale: A bolus is the rounded mass of food formed in the mouth and swallowed, moving through the esophagus, making C the correct answer.