What is the name of the place where the esophagus meets the stomach?

The place where the esophagus meets the stomach is clinically called cardia. When the patient eats, it will enter the stomach through the cardia. At this time, the food will be gradually digested and absorbed by gastric juice. There will be certain muscles on the cardia. Through nerve innervation, it can contract and expand, so as to let the food pass smoothly, thus preventing the food in the stomach from flowing back into the eating tube. Because the cardia will be stimulated by inflammation and gastric acid, resulting in cardiac muscle relaxation, once relaxed, will induce reflux esophagitis, eventually will cause lung infection, at this time there will be swallowing difficulties.