Kelvin  Nguyen
Kelvin Nguyen answered
1. As we swallow, the epiglottis flaps down to close off our esophagus so air does not go into that area.
2.it acts as a "guard gate", closing off the eustachian tubes so air and food cannot enter and cause problems. The epiglottis is a thin lid-like flap of cartilage tissue that is attached … Read more