Simple squamous epithelium

A simple squamous epithelium, also known as pavement epithelium or tessellated epithelium, is a single layer of flattened, polygonal cells that line various structures in the body. This epithelium facilitates passive diffusion and filtration due to its thinness. It is found in areas such as the alveoli of the lungs, the lining of blood vessels (endothelium), and the serous membranes of body cavities.