How does your body make sure food enter the esophagus and not the windpipe?

The body uses a structure called the epiglottis to ensure food enters the esophagus and not the windpipe. When you swallow, the epiglottis folds down over the larynx (the opening to the windpipe), directing food into the esophagus. This reflex action prevents food and liquids from entering the airway, reducing the risk of choking and aspiration. Additionally, coordinated muscle contractions in the throat help push the food down into the esophagus.