The course details, at the cellular and systemic levels, the nervous, musculoskeletal, cardiovascular, renal, pulmonary, digestive, endocrine, and immune systems. The importance of proper nutrition and relaxation in prevention and rehabilitation is also mentioned.
Physiology is the study of biological function.
A more academic definition is the study of the chemistry and physics of life, and the mathematical expression of these applications. To master the rudiments of physiology one must understand biological function at various levels of organization, which include the organism, organ system, organ, tissue, cellular, and molecular levels. One must also understand the various responses and adaptations at each of these levels that occur as a result of various perturbations such as exercise and physical activity, pathological, environmental, emotional, and physical stresses. Thus, the physical therapy professional must master concepts of human biology and function before she or he can assume responsibility for society's well being in the area of rehabilitation. While the techniques of physical therapy are often performed by those with only technical training, such as physical therapy assistants, only the therapist has the level of understanding necessary for diagnosing, prescribing, directing, and following physical therapy treatments.