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The upper gastrointestinal tract

The upper gastrointestinal tract

During swallowing food travels from the mouth cavity into the stomach.



upper digestive tract, digestion, digestive tract, feeding, food, mouth cavity, stomach, pharynx, esophagus, peristalsis, swallowing, decomposer, gastric acid, salivary glands, cardia, , stomach acid, pepsin, tongue, mucous membrane, enzyme, human, organ system, biology

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