The tube that connects your mouth and your stomach is the oesophagus.
Swallowing forces the food into the oesophagus
The larynx protect the lower respiratory tract from aspirating food into the trachea while breathing
The epiglottis is a flap of tissue that sits beneath the tongue at the back of the throat. Its main function is to close over the windpipe (trachea) while you're eating to prevent food entering your airway.