What two organ groups make up the digestive system?

The digestive system comprises two main organ groups: the alimentary canal and the accessory organs. The alimentary canal includes organs such as the mouth, esophagus, stomach, small intestine, large intestine, and anus, through which food passes and is processed. The accessory organs, which include the liver, pancreas, and gallbladder, produce enzymes and substances that aid in digestion but do not directly transport food. Together, these organ groups work to break down food, absorb nutrients, and eliminate waste.