What does physiology study?

Physiology specifically focuses on the functions and processes of living organisms and their parts. It examines how various systems within the body—such as the circulatory, respiratory, and nervous systems—operate, interact, and contribute to the overall functioning of an organism. This study encompasses all aspects of how organisms respond to internal and external stimuli, how they maintain homeostasis, and how their biological systems work together to support life.

Understanding physiology is crucial in fields such as medicine, biology, and health sciences because it provides foundational knowledge about how normal bodily functions occur as well as how various diseases and health conditions can disrupt these processes. By focusing on the functions, physiology allows practitioners to better understand health, treatment, and interventions necessary to support or restore bodily functions.