This chapter begins the study of anatomy and physiology by defining the disciplines (objective 1), and explaining the characteristics and needs that are common to all living things (objectives 2 and 3). It introduces a basic mechanism necessary to maintain life (objectives 4 and 5), as well as the relationship of increasingly complex levels of organization in humans (objective 6). The study of levels of organization continues with the identification of body cavities and the organs found within each cavity (objectives 7 and 8). The membranes associated with the abdominopelvic and thoracic cavities are described (objective 9). The functions of the various organ systems as well as the organs associated with each system are described (objectives 10 and 11). Finally, the language used to describe relative positions of body parts, body sections, and body regions is presented (objective 12).

This chapter defines the characteristics and needs common to all living things and the manner in which the human body is organized to accomplish life processes. The language peculiar to anatomy and physiology is also introduced.