Definitions for "Epithelial tissue"
sheets of tightly packed cells that line organs and body cavities.
acts as a covering and lining on the outside surfaces of the body and lines the internal organs or secretes hormones or other products.
the tissue which forms the superificial layer of skin and some organs. It also forms the inner lining of blood vessels, ducts, body cavities, and the interior of the respiratory, digestive, urinary, and reproductive systems.