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: -Epithelial tissue provides a covering (skin, the linings of the various passages inside the body).

Detailed explanation-3: -Tissue Membranes. A tissue membrane is a thin layer or sheet of cells that covers the outside of the body (for example, skin), the organs (for example, pericardium), internal passageways that lead to the exterior of the body (for example, mucosa of stomach), and the lining of the moveable joint cavities.

Detailed explanation-4: -The four major classes of simple epithelium are: 1) simple squamous; 2) simple cuboidal; 3) simple columnar; and 4) pseudostratified.

Detailed explanation-5: -The skin has two principal layers. The epidermis is the epithelial tissue layer of skin. Hair follicles, sebaceous glands, and sweat glands are epithelial invaginations from the epidermis.