omasum is a muscular, circular, oval organ seen in a spherical view, and omasum has a curved axis with an anterior concavity that deviates to the left in the ventricular direction. And a size corresponding to 7.% of the total size of the stomach, which has covered its surface with lint and plays its role by reducing the size of food and absorbing water, and based on the high number of its layers, absorbs nutrients to Maximum In the term, one of the four stomachs of a ruminant is located between the reticulum and the abomasum.