MICROANATOMY

Detailed explanation-1: -At the site of a tight junction, cells are held tightly against each other by many individual groups of tight junction proteins called claudins, each of which interacts with a partner group on the opposite cell membrane.

Detailed explanation-2: -Tight junctions are often found at epithelial cells, which are cells that line the surface of the body and line body cavities. Not only do epithelial cells separate the body from the surrounding environment, they also separate surfaces within the body.

Detailed explanation-3: -Occluding junctions Proteins in the membrane of adjacent cells called occludin interact with each other to produce this tight seal.