This document provides an overview of anatomy and physiology. It introduces key concepts like structural organization, homeostasis, and how structures and functions complement each other. It defines anatomy as the study of body structures and their relationships, while physiology is the study of how body parts function and systems process. Topics of anatomy include gross, microscopic, and developmental anatomy. Physiology topics include organ systems like renal, neurological, and cardiovascular. Homeostasis describes the body's ability to maintain stable internal conditions despite external changes through negative and positive feedback mechanisms. The document also reviews anatomical terminology including anatomical position, directional terms, body planes, and body cavities.