Pavement epithelium is a simple squamous epithelium consisting of flattened cells. This type of epithelium, for example, occurs on the mesentery (mesothelium) and lining blood vessels (endothelium)
This specimen is a whole mount of thin mesentery stained with silver to outline individual cells and hematoxylin to show the nuclei. The mesentery is covered on both sides with simple squamous epithelium. The thinness of the specimen allows both surfaces to be seen giving the false impression that cells are multinucleated.