ABSTRACT
What is the basic structure of endothelium? Endothelium refers to the simple squamous epithelium that is found lining organs, blood vessels and body cavities. This single layer of cells lies on top of a basement membrane, and in small arteries, arterioles and glands it is also in close proximity to smooth muscle. Endothelial structure varies according to its site and function. The major types include:
➤ Continuous endothelium consists of a continuous basement membrane with endothelial cells anchored together via tight junctions. It has a low permeability and is found in the blood brain barrier and the lung.
