A
simple squamous epithelium is a single layer of flat cells in contact with the
basal lamina (one of the two layers of the
basement membrane) of the
epithelium. This type of epithelium is often permeable and occurs where small molecules pass quickly through membranes via
filtration or
diffusion. Simple squamous epithelia are found in
capillaries,
alveoli,
glomeruli, and other tissues where rapid diffusion is required. Cells are flat with flattened/rounded nucleus. It is also called pavement epithelium due to its tile-like appearance. This epithelium is associated with filtration and diffusion.This tissue is extremely thin, and forms a delicate lining.