What is another name for the digestive system?

The digestive system is commonly referred to as the gastrointestinal system. This terminology encompasses the entire tract from the mouth to the anus, which includes organs such as the esophagus, stomach, intestines, and accessory organs like the liver and pancreas. This system is responsible for the breakdown of food, absorption of nutrients, and elimination of waste. The term "gastrointestinal" is derived from "gastro," relating to the stomach, and "intestinal," referring to the intestines, effectively describing the primary components of the digestive process.

In contrast, the cardiovascular system is involved in the circulation of blood and transportation of nutrients and oxygen throughout the body. The respiratory system pertains to breathing and gas exchange, primarily involving the lungs. Lastly, the excretory system is responsible for removing waste products from the body, particularly through structures like the kidneys and bladder, but does not encompass the full digestive process. Thus, the name "gastrointestinal" accurately captures the essence of the digestive system's function and components.