One function of the pyloric sphincter is to ____.
A) secretes acid into the stomach
B) keeps the food in the stomach until it partially digested and prevents the contents of the small intestine from backing up into the stomach
C) prevents the contents of the small intestine from emptying too quickly into the colon
D)initiates peristalsis
Answer: B) Keeps the food in the stomach until it partially digested and prevents the contents of the small intestine from backing up into the stomach
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