This tube is called the alimentary canal or gastrointestinal tract. There are three main functions to the digestive system. The first is digestion. Digestion is where food is changed in the mouth, stomach, and intestines by chemical, mechanical and physical actions, so the body can absorb it, second is absorption which is where nutrient material is taken into the bloodstream or lymph and travels to all cells of the body. Elimination is the last functions. This is where solid waste products of digestion are
This tube is called the alimentary canal or gastrointestinal tract. There are three main functions to the digestive system. The first is digestion. Digestion is where food is changed in the mouth, stomach, and intestines by chemical, mechanical and physical actions, so the body can absorb it, second is absorption which is where nutrient material is taken into the bloodstream or lymph and travels to all cells of the body. Elimination is the last functions. This is where solid waste products of digestion are