If Peristalsis in the Esophagus Is Insufficient to Carry an Especially

question 289

Multiple Choice

If peristalsis in the esophagus is insufficient to carry an especially large bolus of food through the esophagus to the stomach, what happens to dislodge this trapped food?

• A)A secondary peristaltic wave is initiated by the swallowing centre.
• B)A secondary peristaltic wave is initiated by distention of the esophagus, mediated by the intrinsic nerve plexuses.
• C) The food remains in the esophagus until the swallowing mechanism is voluntarily initiated once again.
• D) Increased esophageal mucus secretion occurs to lubricate the stuck bolus so that it can slide to the stomach.

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