NEET BIOLOGY

Detailed explanation-1: -The epithelium is a type of body tissue that forms the covering on all internal and external surfaces of your body, lines body cavities and hollow organs and is the major tissue in glands.

Detailed explanation-2: -The term “epithelium” refers to layers of cells that line hollow organs and glands. It is also those cells that make up the outer surface of the body.

Detailed explanation-3: -Squamous epithelial cells are slightly rounded, often elliptical and flat in shape, with a small nucleus in the center. Epithelial cells can also be organized into one or multiple layers. There are two types of epithelial tissues with only one layer of cells: simple and pseudostratified.

Detailed explanation-4: -Where Are Epithelial Cells Found? Epithelial cells line the major cavities of the body. Epithelia form the structure of the lung, including the alveoli or air sacs where gas exhange occurs. Cells line most organs, such as the stomach and small intestine, kidney, and pancreas.