Which of the following best defines anatomy?

The definition of anatomy is best captured by the study of body structures. This field encompasses the structures that make up the various systems within a living organism, including organs, tissues, and cells. Anatomy provides insight into how these structures are organized and how they relate to one another, forming the basis for understanding the physical aspects of biology and medicine.

In contrast, while the study of tissue functionality relates more to physiology, which focuses on how those structures work and interact, it does not define anatomy itself. Similarly, the study of bodily movements falls under the category of kinesiology or biomechanics, and the study of disease processes pertains to pathology; neither of these disciplines accurately describes anatomy as a whole. Thus, the emphasis on body structures is what distinctly identifies anatomy.