This document provides an overview of the major tissue types found in the human body, including epithelial, connective, muscle, and nervous tissues. It describes the classification, structure, and functions of each tissue type. For example, it notes that epithelial tissues cover and line organs, and can be simple (one cell layer) or stratified (multiple layers). Connective tissues are categorized as loose connective, dense connective, adipose, cartilage, and bone tissues. They provide structure, support, and binding functions throughout the body.