The digestive system is a complex network of organs that work together to break down food into nutrients. It starts in the mouth, where food is chewed and mixed with saliva. From there, it travels down the esophagus to the stomach, where it is further digested with acids and enzymes. After the stomach, the partially digested food moves into the small intestine, where most nutrient absorption occurs. The remaining waste then passes into the large intestine, where water is absorbed, and finally, it is expelled from the body through the rectum. This process is essential for providing energy and nutrients to the body.