what system does the intestine belong to
This one long tube of the digestive systemâthe digestive tractâincludes the esophagus, stomach, small intestine and large intestine along with accessory organs like the liver, gallbladder, pancreas, and salivary glands.The digestive tract of a normal adult human being is about 30 feet long.hough the esophagus is the first part of the digestive tract, the process of digestion begins with the mouth where our teeth (premolars and molars) chew (masticate) the food to break it down into smaller pieces.