Secondary Peristaltic Waves in the Esophagus Occur

question 248

Multiple Choice

Secondary peristaltic waves in the esophagus occur

• A)when a large or sticky bolus becomes stuck in the esophagus
• B)through coordination by the swallowing center
• C)through coordination by extrinsic nerve signals
• D)through b and c
• E)only in the duodenum

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