Digestive system Created 2026-10-20 Updated 2026-11-05
The digestive system processes food, absorbs usable material and eliminates residual contents. The alimentary tract works with accessory organs such as the liver, pancreas and gallbladder. Mechanical processing, chemical breakdown and transport across an epithelium are distinct functions.[ref]
Regions of the Digestive System by the National Cancer Institute. Alimentary tract and accessory organs