13
QuizMultiple Choice

The Digestive and Urinary Systems — Unit test

Question 13 • PMHS Health Q2

The muscles in the stomach aid in digestion by __________.

Answer
A
secreting bile
B
churning, or mixing, food
C
opening and closing the stomach
D
absorbing nutrients

Explanation

The stomach’s muscles contract to churn and mix food with digestive juices, breaking it into a softer mixture. Bile is produced by the liver, and most nutrient absorption happens in the small intestine. So the correct choice is churning, or mixing, food.

AI-written and checked against the verified answer.

Previous
Next