what is physiology

Physiology is the scientific study of functions and mechanisms in a living system. It is a sub-discipline of biology that focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out chemical and physical functions in a living system. Physiology can be divided into different fields based on the classes of organisms, such as medical physiology, animal physiology, plant physiology, cell physiology, and comparative physiology. Human physiology is the study of how the human bodys systems and functions work together to maintain a stable internal environment. It includes the study of the nervous, endocrine, cardiovascular, respiratory, digestive, and urinary systems, as well as cellular and exercise physiology. Understanding human physiology is essential for diagnosing and treating health conditions and promoting overall wellbeing. Physiology is an experimental science that aims to understand the mechanisms of living things, from the basis of cell function at the ionic and molecular level to the integration of molecular, cellular, systems, and whole-body function. Physiologists work in universities, research institutions, biotechnology companies, and the pharmaceutical industry to advance our understanding of how the body functions.