Which of the following is NOT characteristic of peristalsis?

a. It begins in the esophagus and ends in the rectum.
b. It involves rhythmic, wavelike contractions.
c. It involves the contraction of both circular and longitudinal muscles.
d. Its primary responsibility is to mix the contents in the GI tract with digestive fluids.


Answer: d. Its primary responsibility is to mix the contents in the GI tract with digestive fluids.

Nutritional Science

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