esophagus

Through the mouth the animal ejects a part of the esophagus and envelops its prey, which is often of considerable size.

The food that is swallowed passes down the esophagus and enters the stomach.

Close to its posterior end the esophagus gives off three food reservoirs, two above and a single larger one below.

The respiratory system is represented by the anlage of the lungs, a longitudinal protrusion of the ventral wall of the esophagus.

In the same way American usage prefers esophagus, diarrhea and gonorrhea to the English oesophagus, diarrhoea and gonorrhoea.