does the epithelial tissue line capillaries?
The epithelial cells that line capillaries are routinely referred to as endothelial cells, and the capillary epithelium is called an Endothelium-a term reserved for the layer of flat cells lining blood vessels, lymph vessels, and other cavities.oth Alveolus and capillary are lined by a single layer of flat cells that provide an excellent example of simple Squamous Epithelium. Figures A and B at right are light and electron micrographs of sections taken through an Interalveolar Septum-a wall separating two adjacent alveoli-in the lung of the macaque.