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ADA NBDE National Board Dental Part I

Category - NBDE

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What type of GI contraction is most common in the duodenum?

Tonic contractions
Peristalsis
Segmentation
None of the above

Explanation

Answer: C - Segmentation (mixing) is most common in the small intestine. It involves rhythmic contractions that serve to chop chyme, mixing it with digestive enzymes and keeping it in contact with the gut wall for maximum absorption.

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ADA NBDE National Board Dental Part I

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ADA NBDE National Board Dental Part I

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