This document discusses anatomical terminology used to describe the positions and movements of the body. It defines terms like anterior, posterior, superior, inferior, medial, lateral, and proximal. It also describes the three main planes of motion - the sagittal plane, which divides the body into right and left parts; the frontal plane, which divides the body into anterior and posterior parts; and the transverse plane, which divides the body into superior and inferior parts. Understanding these planes and anatomical terms is important for describing human movement.