Anatomical system that has as its parts the organs devoted to the ingestion, digestion, and assimilation of food and the discharge of residual wastes.

An anatomical system consisting of the alimentary canal and digestive glands responsible for intake, absorption, digestion and excretion of food.[AAO]

many anatomy ontologies consider gastrointestinal system synonymous with digestive system. here we follow MA in dividing digestive system into gastrointestinal and hepatobiliary. hepatobiliary includes the liver and biliary tract. species-specific AO classes are categorized according to whether liver is included. For example, XAO includes liver as part of XAO:0000125 alimentary system, so we assume this class is the more generic class

uberon

alimentary tract, gut, alimentary system, gastrointestinal system

digestive

UBERON:0001007

http://purl.obolibrary.org/obo/uberon.owl, http://purl.obolibrary.org/obo/cl.owl

• stomach
• intestine

• digestive system duct
• alimentary part of gastrointestinal system
• digestive tract
• digestive system element
• hepatobiliary system