Cheek squamous epithelial cell. Differential interference contrast (DIC) light microscopy footage of a cheek cell scraped from the the inner surface of a person's mouth. Squamous epithelial cells are thin and flat and several layers thick, making the lining of the cheek smooth, flexible and strong. The cell membrane, cell nucleus and the cell's organelles are clearly visible. Magnification: x700 when printed at 10 centimetres across.