What systems regulate digestion?

Digestion is a rather complex process, which is regulated by the complex of the digestive system. There are several systems that regulate digestion. One of them is the regulation of salivation. When food enters the oral cavity, salivation increases and nerve impulses are connected. Further, the regulation of food swallowing is connected. This process helps push the resulting lump through the digestive tract. At the third stage, the regulation of digestion in the stomach and intestines is connected, where the production of gastric juice takes place. When the stomach muscles work, food moves into the intestines.