The cecum is another term for the beginning of the large intestine. It is a pouch and attached to it, is the appendix. The cecum is connected to the small intestine on one end from which it receives solid wastes known as feces and on the other end, it is connected to the ascending colon. In primary consumers, such as cows, the cecum is large with anaerobic bacteria which aid in the breakdown of tough plant fibers. The cecum is smaller in the carnivores, because animal protein is easier to digest than plant cellulose material. On the other end of the large intestine is the rectum. The large intestine is important for resorption of the water in food, and for preparing wastes for the process of elimination.