How many digestive compartments the cow has?

The cow has four compartments in its digestive system: the rumen, reticulum, omasum, and abomasum. The rumen is the largest compartment and is where food is first stored and fermented by bacteria. The reticulum is located next to the rumen and helps to mix and grind food. The omasum absorbs water and nutrients from food, and the abomasum is where food is finally digested and absorbed.