RT Book, Section A1 Finnegan, Lisa A1 Eagle, Sharon SR Print(0) ID 1163915710 T1 Digestive System T2 Medical Terminology in a Flash! A Multiple Learning Styles Approach, 3e YR 2016 FD 2016 PB F.A. Davis Company PP New York, NY SN 9780803643680 LK fadavisat.mhmedical.com/content.aspx?aid=1163915710 RD 2024/04/24 AB The digestive system is also known as the gastrointestinal (GI) system. It includes all the structures of the alimentary canal, from the mouth to the anus, and the accessory organs. The digestive system has two key functions: digestion and excretion. The organs of the GI system break down food into usable nutrients and then eliminate bulk waste in the form of feces.