The stomach (12.5X)

The corpus ventriculi or stomach. Image copyright: University of Oslo, CC BY-NC-ND 4.0. (Tissue stain: H+E).

This is a histology image of the wall of the stomach (the corpus ventriculi). As you can see, the tunica mucosa folded. This reflects its function; to be able to have a large capacity of food it should have the ability to expand during meals.