The term "gastrointestinal" refers to the system in the body that includes the stomach and intestines. This system is responsible for digesting food, absorbing nutrients, and eliminating waste. It plays a crucial role in overall health by breaking down the food we eat into usable energy and nutrients. The gastrointestinal tract consists of several organs, including the esophagus, stomach, small intestine, and large intestine. Each part has a specific function, such as moving food along, mixing it with digestive juices, and absorbing water and nutrients. Proper functioning of the gastrointestinal system is essential for maintaining good health.