The goal of physiology is to explain the physical and chemical factors that are responsible for the origin, development, and progression of life. Each type of life, from the simple virus to the largest tree or the complicated human being, has its own functional characteristics. In this course, we attempt to explain the specific characteristics and mechanisms of the animal body that make it a living being. The very fact that we remain alive is the result of complex control systems. So we will cover the physiology of all body systems.