Where is the human esophagus?

The esophagus is a part of the digestive tract at the middle and rear of the sternum. It is composed of muscles and connects up to the throat. It is connected to the cardia of the stomach through the esophageal hiatus of the diaphragm. It is about 25 cm long. The esophagus itself has no digestive function. Its main function is to help food enter the stomach. If you eat too hard or sharp food in daily life, it is likely to scratch the esophagus and cause esophageal bleeding. There are many diseases of esophagus, such as mycotic esophagitis, reflux esophagitis, erosive esophagitis, esophageal polyps and so on.