Answer:
The flapping tissue that prevent food and liquid from entering theair passage Is called Epiglottis
Explanation:
The epiglottis is a leaf-shaped flap in the throat that prevents food from reaching the windpipe and the lungs. It open during breathing, allowing air to reach the larynx. During swallowing, it closes to avoid aspiration of food into the lungs, causing the swallowed liquids or food then to go along the esophagus towards the stomach.
