TheÂ digestive system is a very indispensible organ system. With a normal-functioning digestive system, you can be assured that you receive the right nutrients that your body needs. In your GIT or gastrointestinal tract, you will find the bowel. This is the end part of your digestive tract where the food is absorbed (small intestines) and eliminated (large intestines). The large intestines serve as the last terminal for the food to transit your body. Water is absorbed and fecal material is formed here.