The document discusses anatomical planes and movements. It describes the four main anatomical planes - sagittal, axial, coronal, and oblique - which divide the body into sections. It then defines common types of movements including flexion, extension, adduction, abduction, rotation, inversion, eversion, supination, pronation, elevation, depression, plantar flexion, and dorsal flexion. Circumduction is defined as a combination of several movements.