"Physiology is the science which treats of the properties of organic bodies, animal and vegetable, of the phenomena they present, and of the laws which govern their actions. Inorganic substances are the objects of other sciences, - physics and chemistry"

This quote by Johannes P. Muller is describing the field of physiology, which is the research study of the functions and processes of living organisms. It is a branch of biology that concentrates on the structure and function of the body and its organs. Physiology is concerned with the physical and chemical procedures that happen within living organisms, such as the way in which cells, tissues, and organs connect to form an operating organism. It likewise looks at how these processes are affected by external elements, such as the environment and diet plan. On the other hand, physics and chemistry are the sciences that study inorganic substances, such as rocks, minerals, and gases. These sciences focus on the properties of these substances and the laws that govern their habits.