Question
Biology Question on Animal Tissues
Inner lining of blood vessels is formed by:
ciliated epithelium
squamous epithelium
cubical epithelium
columnar epithelium
squamous epithelium
Solution
Simple squamous epithelium makes up the lining of the blood vessels and lymphatic vessels. It is composed of the thinnest layer of flat cells. These cells have the basement membrane on one side and the lumen on the other. They can be found in tissues throughout the body that need fast diffusion, such as glomeruli, capillaries, and alveoli.
A thin layer of subendothelial connective tissue surrounds it, and it is held together by an intercellular polysaccharide matrix. The internal elastic lamina, which is a network of circularly organised elastic bands, is interwoven throughout. Within the tunica intima, a thin membrane made of elastic fibres runs perpendicular to the vessel.
A single layer of flat cells in contact with the basal lamina, one of the two layers of the basement membrane, may make up a simple squamous epithelium.
This type of epithelium is frequently present when membrane filtration or diffusion allows tiny molecules to move through them readily.
The nuclei of cells are oblong and flat. The pavement epithelium is another name for it because of the way it looks like tiles.Filtration and diffusion are connected to this epithelium. This tissue creates a delicate lining and is quite thin. It provides scant protection, if any.