Explain the structure and function of stomach.

Stomach is a muscular J shaped structure, situated in the left part of abdominal cavity behind the diaphragm. It is found between esophagus and duodenum. It continues from esophagus at cardiac sphincter and with the duodenum at pyloric sphincter. The stomach is divided into 4 parts- the cardia, the fundus, the body of stomach and the pyloric part. Stomach functions to further digest the food by churning the bolus and mixing it with the gastric juices that are secreted by its own linings.Stomach also stores food which allows us to go many hours between meals.