Corn does not make up 100% of the diet. The diet of cattle is usually a mixture of many feeds, mixed in the correct proportions to give the animal what it needs for its stage of growth or production. So to wrap it all up, yes cattle do eat corn, many other cereal grains. They love these feeds [video].
The Tongue. The tongue is a muscular organ in the mouth with several functions. It is attached to the bottom of the mouth by a membrane on its underside called the lingual frenum. The top surface of the tongue contains papillae, the tiny nodules or bumps that include the taste buds. One of the functions of the tongue is taste, but it also facilitates chewing, digesting, swallowing and speaking.
Small bumps (papillae) cover the surface of back part of the tongue. 1  Between the papillae are the taste buds, which allow you to taste. 2  The tongue moves food to help you chew and swallow.  The tongue also helps you form words.