The digestive system organs and esophagus function. Oshkoshon contains the mouth, stomach, small intestine, esophagus, small intestine, large intestine, liver, gallbladder, and esophagus lower part. The general functions of the esophagus: food collection and temporary storage, mechanical mixing, initial chemical breakdown of proteins (pepsin, HCl), controlled release of nutrients into the small intestine with twelve fingers, supply of vitamin B12 via intrinsic factor, ingestion of certain substances (alcohol, drugs) and protection with mucus barrier