What is the primary focus of anatomy as a field of study?

The primary focus of anatomy is the study of the organs and systems of the body. This field explores the structure, organization, and complex relationships between different organs and systems. By understanding how these anatomical components are arranged and how they physically connect to one another, students gain insight into the overall framework of the human body. This foundational knowledge is essential for further studies in physiology, which looks at how these structures function and work together in the living organism.

While the other options touch on important aspects of biological science, they do not encapsulate the essence of anatomy as directly as the study of organs and systems does. For instance, exploring functions pertains more to physiology, while the study of interactions between tissues or cellular development pertains to specialized fields such as histology or cell biology. Thus, focusing on the arrangement and composition of organs and systems is the defining characteristic of anatomy.