human
Can you tell me about the esophagus?
assistant
The esophagus is a muscular tube that carries food from the throat to the stomach. It is located in the chest, just below the throat and above the stomach. The esophagus is made up of three layers: mucosa, submucosa, and muscle. The mucosa layer is the inner lining of the esophagus. The submucosa layer is the middle layer of the esophagus. The muscle layer is the outer layer of the esophagus.