The entrance to the stomach is called the cardia, which is located at the junction where the esophagus and stomach join.
The cardia is the entrance for food to enter the stomach from the esophagus, and its function is to promote the food from the esophagus to enter the stomach in a downward direction, and it also prevents the food from the stomach from flowing back upward into the esophagus. The gastric cardia is located on the left side of the 11th thoracic vertebrae of the human body.
The stomach is divided into cardia, fundus, body, lesser curvature, greater curvature, angle, sinus, and pylorus, with the cardia being the entrance and the pylorus being the exit.
If the function of cardia is abnormal, it is mostly seen in cardia dystrophy and gastroesophageal reflux disease, which usually manifests as pain under the sternal raphe, difficulty in swallowing and reflux.
It is recommended to seek medical treatment in time, and give acid-suppressing drugs, such as omeprazole, rabeprazole, etc., combined with gastric stimulating drugs, such as domperidone, itopride, etc., and do surgical treatment if necessary.