Reticulum (anatomy)

The reticulum is the second chamber in the four-chamber alimentary canal of a ruminant mammal. Anatomically it is the smaller portion of the reticulorumen along with the rumen. Together these two compartments make up 84% of the volume of the total stomach.

The reticulum is colloquially referred to as the honeycomb, bonnet',^[1] or kings-hood.^[1] When cleaned and used for food, it is called "tripe".

Heavy or dense feed and foreign objects will settle here. It is the site of hardware disease in cattle and because of the proximity to the heart this disease can be life-threatening.