GENERAL HISTOLOGY

Detailed explanation-1: -Simple squamous epithelial cells are flat and thin enough to allow molecules to pass via diffusion. This cell type is found in the walls of capillaries, linings of the pericardium, and alveoli.

Detailed explanation-2: -Due to their simple and thin construct, they allow for easy transmembrane movement (i.e. across the membrane, and through the cell) of small molecules. Some molecules, such as oxygen and carbon dioxide diffuse freely across the simple squamous epithelia according to concentration gradients.

Detailed explanation-3: -Simple squamous epithelial cells form a membrane that allows selective diffusion of materials to pass through. Diffusion helps with filtration, absorption and secretion functions.

Detailed explanation-4: -simple squamous epithelium is a single layer of flat scale-shaped cells. Both the endothelial lining of blood vessels and the mesothelial lining of the body cavities are simple squamous epithelium.

Detailed explanation-5: -The surface of the simple squamous epithelium is selectively permeable.