Mucous Colon Epithelial Tissue

In the human gastrointestinal tract, most of the digestive system, from the mouth to the anus, follows the general scheme of hollow organs composed of four layers: the inner layer or mucosa epithelium, the submucosa, the muscularis, and the outer protective layer known as the adventitia or serosa. Following the small intestine, the large intestine includes the ascending, transverse, descending, and sigmoid sections of the colon.