Why are the intestines the largest parts of the alimentary canal?

The alimentary canal is the whole passage along which food passes through the body from mouth to anus. It includes the esophagus, stomach, and intestines. The intestines carry the food most of the way down, breaking down the food along they way. The intestines carry food from the esophagus to the stomach.

The parts of the alimentary canal listed in order are the mouth, pharynx or throat, esophagus, stomach, small intestine and large intestine. The alimentary canal is the digestive system and includes the parts of the body with which food comes in contact from eating to waste elimination.