GIVE A SUMMARY ABOUT EPITHELIAL TISSUE & CONNECTIVE TISSUE

Epithelial tissue is composed of cells that are more tightly packed than connective tissue. It is found throughout the body lining the inner organs and covering the outside. The cells are typically connected to each other. This tight packing allows the epithelial tissues to act as a barrier to protect against injury, invading microorganisms, and regulate fluid loss. Skin and the mucous membrane are examples of epithelial tissues.

Connective tissues function mainly to bind and support other tissues and organs. They are composed of a relatively small number of cells scattered throughout an extracellular matrix. Typically, this matrix is composed of some type of protein fiber embedded in a gelatinous substance. The main vertebrate connective tissues are loose connective tissue, adipose tissue, fibrous connective tissue, cartilage, blood and bone. Loose connective tissue is the most abundant type and it holds organs in place. It is made up of collagen and elastin fibers, fibroblast cells that secrete protein, and macrophage cells that protect and repair the tissue. Adipose tissue is a special type of loose connective tissue that stores fat.