**2. Microscopic structure**

In the intestinal epithelium, both at the level of the villi and in the crypts, five types of cells are identified, which are the following:


5.M cells: They are located in the domes of the lymphoid aggregates and have a relevant function, which consists of transporting various tumors, both food and bacteria, toward the underlying lymphoid tissue.

The lamina propria on which the epithelial cells are located is made up of a connective component and gut-associated lymphoid tissue. Its main function is to participate in the defense against microorganisms and other pathogens.
