The document provides an introduction to human anatomy, including anatomical position, body planes, regions and cavities, directional terms, and movements. It defines anatomy as the study of body structure and relationships. Gross anatomy examines large structures visible to the naked eye, while microscopic anatomy examines minute structures only visible microscopically. The anatomical position is standing erect with palms and feet facing forward. Planes, regions, and cavities divide the body into sections for study. Directional terms describe positions of structures in relation to one another and major planes. Common movements like flexion, extension, and rotation are also defined.