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What type of structure between the esophagus and the stomach normally opens only when a bolus arrives?
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asked
Dec 27, 2024
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by
HerbertFulch
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What type of structure between the esophagus and the stomach normally opens only when a bolus arrives?
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Dec 27, 2024
by
Normand57353
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590
points)
sphincter
The answer is that simple.
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