Anatomy of the cow digestive apparatus. From left to right: mouth and esophagus, the reticulum (brown excrescence on the left), the rumen or composed paunch, from the top to the bottom by the dorsal sac, the cranial sac and the ventral sac. The grey excrescence beneath is the abomasum or velles.

digestive system digestive tube stomach intestine large intestine colon rectum esophagus mouth zootomy compartment true stomach paunch reticulum animal ruminant bovine cow domestic cow artwork