rumen

rumen

pl. rumens, rumina; the largest of the compartments of the forestomach of ruminant animals that serves as a fermentating vat. It is lined by a keratinized epithelium bearing numerous absorptive papillae; it is partly subdivided by folds (pillars). These include dorsal and ventral sacs and a caudodorsal blind sac and a caudoventral blind sac. It communicates directly with the reticulum cranially and has no other exit. It covers most of the floor of the adomen on the left in the nonpregnant animal and in animals not affected by left displacement of the abomasum. Caudally it may reach the brim of the pelvis and is palpable rectally.

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rumen transplant

see cud transfer.