Which term defines the study of body function?

• A. Anatomy
• B. Physiology
• C. Pathophysiology
• D. Perfusion

Answer: (B)

Studying how the body works means focusing on function—how organs and systems carry out their processes, how signals regulate activity, and how the body maintains balance through feedback. This field is physiology. It encompasses metabolism, circulation, respiration, neural and hormonal control, and the mechanisms that allow the body to respond to changes.

Anatomy, in contrast, is about structure and form; pathophysiology looks at how diseases alter normal function; perfusion describes the flow of blood to tissues, a specific physiological process rather than the overall study of function. So, the term that defines the study of body function is physiology.