What Is the Main Function of the Stomach?

 

 

When food enters the mouth it is swallowed and enters the esophagus. Food travels down the esophagus and enters the stomach through a muscular valve known as the lower esophageal sphincter. It is broken down by stomach acid and churned into a substance known as chyme. Then, the food travels through the pyloric sphincter and passes into the small intestine where it can be further digested.