Anatomy is the branch of science concerned with the structure of living organisms and their parts. It involves the detailed study of internal and external body structures, documenting how various components are organized and how they interact to form functional systems. The field examines everything from macroscopic structures, such as organs and skeletal systems, to microscopic levels, including cellular organization. Anatomical study is foundational to many biological and medical disciplines, providing a framework for understanding the form and physical makeup of life.