Ruminants reticulum

Ruminants include those animals that we normally think of as cud-chewing, or ruminating animals common examples include cattle, sheep, and goats. The most unusual feature of these animals involves their digestive system, and in particular their multi-compartmented stomach. They are commonly referred to as having four stomachs. The true stomach, that part comparable to the stomach of man, is preceded by 3 other compartments. These are, in order, the rumen, reticulum, omasum, and abomasum. 

In ruminants, Brucella organisms bypass the most effective host defenses by targeting embryonic and trophoblastic tissue. In cells of these tissues, the bacteria grow not only in the phagosome but also in the cytoplasm and the rough endoplasmic reticulum.30 In the absence of effective intracellular mi-... 

The stomach of the ruminant is divided into four compartments (Fig. 8.5). In the young suckhng, the first two compartments, the rumen and its continuation the reticulum, are relatively tmdeveloped, and milk, on reaching the stomach, is channelled... 

Fig. 8.5 Diagrammatic representation of the rumen, reticulum, omasum and abomasum of the ruminant, indicating the flow of digesta.

Reticulum First compartment of the ruminant stomach, with an appearance similar to honeycomb, that returns rumen contents to the mouth for further mastication or rumination. 

Ruminant A mammal that possesses four compartments in the stomach (rumen, reticulum, omasum, abomasum) and is capable of digesting fiber-rich foods. The rumen contains a wide range of anaerobic microorganisms capable of converting cellulose and other fibers—except lignin—into volatile fatty acids that are used as a source of energy. 

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