Functions of Intestine
The intestine is a muscular tube that moves food from the stomach to the anus. As food travels through the small and large intestines, fluids and nutrients are absorbed through the intestinal wall. People become dehydrated and malnourished when the intestine does not function well. Symptoms of intestinal failure include: persistent diarrhea, dehydration, muscle wasting, poor growth, frequent infections, weight loss, and fatigue.