Esophagus

Your esophagus is a hollow, muscular tube that carries food and liquid from your throat to your stomach. The primary function of your esophagus is to carry food and liquid from your mouth to your stomach. When you swallow, food and liquid first move from your mouth to your throat (pharynx).
A small muscular flap called the epiglottis closes to prevent food and liquid from going down the “wrong pipe” — your windpipe (trachea). Another small flap called the uvula helps prevent liquid from passing upward into your nasal cavity. Muscles in your esophagus propel food down to your stomach. One of the most common symptoms of esophagus problems is heartburn, a burning sensation in the middle of your chest