Gastrointestinal Anatomy And Physiology: The Es... ❲2024-2026❳

This remains closed during breathing to prevent air from entering the stomach and opens specifically during swallowing.

The esophagus is guarded at both ends by physiological valves known as sphincters: Gastrointestinal Anatomy and Physiology: The Es...

If food gets stuck or moves too slowly, "stretch receptors" in the esophageal wall trigger a second wave to clear the remaining debris. This remains closed during breathing to prevent air