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The rumen.
lingual papillae
philtrum
dermal papillae
rumen
Partially digested forage that was in the rumen is moved into the reticulum from the contractions of the rumen. The esophagus "transports" the bolus of cud up fromt the reticulo-rumen to the mouth to be chewed.
A cat's tongue looks like a sand paper, that is due to the four types of papillae namely Filiform papillae, Foliate papillae, Fungiform papillae, Circumvallate papillae.
The rumen, also known as a paunch, forms the larger part of the reticulorumen, which is the first chamber in the alimentary canal of ruminant animals. It serves as the primary site for microbial fermentation of ingested feed. The smaller part of the reticulorumen is the reticulum, which is fully continuous with the rumen, but differs from it with regard to the texture of its lining.
The four types of tastebuds are all papillae, that is (raised surfaces of the tongue) and are namely: fungiform, filiform and foliate and circumvallate. Fungiform papillae are mushroom shaped and occur at the tip of the tongue. Filiform papillae does not assist in taste detection only function. Foliate papillae is towards the posterior part of the tongue and is found on the lateral margins. Circumvallate papillae line the back of the tongue.
Rumen
Papillae are ridges found on your tongue. Taste buds are found within papillae your tongue. There are several types of papillae but it seems you only need to know the difference between the two.
Papillae are the receptors of taste that includes 4 types. Here are the 4 types of papillae: Fungiform, Filiform, Foliate, and Circumvallate papillae.