Gross anatomy focuses on which aspect of the body?

Gross anatomy is the branch of anatomy that deals with the study of the body's structures that are large enough to be seen without the aid of a microscope. This includes organs, tissues, and systems, where physical characteristics can be directly observed and analyzed. By focusing on macroscopic structures, gross anatomy helps to provide an overall understanding of how different components of the body are organized and how they interact with each other.

In contrast, options involving structures that cannot be seen, molecular structures, or cellular functions pertain to other branches of anatomy and biology. These aspects, such as histology (the study of microscopic structures) or biochemistry (the study of molecular levels of biological processes), look at finer details that require specialized equipment to examine. Thus, the emphasis on visible structures highlights the importance of gross anatomy in fields like medicine, where clinicians must assess and understand the physical body as a whole.