The esophagus is a muscular tube that connects the throat (pharynx) to the stomach. It plays a crucial role in the digestive system by transporting food and liquids that have been swallowed down to the stomach for further digestion. The esophagus is lined with mucous membranes that help facilitate this process. When food is swallowed, it travels down the esophagus through a series of coordinated muscle contractions known as peristalsis. This ensures that food moves efficiently from the mouth to the stomach, where it is broken down further. Disorders of the esophagus can lead to difficulties in swallowing and other digestive issues.