Full Definition of VARIATION. 1. a: the act or process of varying: the state or fact of being varied b: an instance of varying c: the extent to which or the range in which a thing varies. 2.: declination 6. a change in the form, position, condition, or amount of something. : something that is similar to something else but different in some way. music: a repeated version of a short piece of music with changes in its rhythm, tune, or harmony.
Types of human physiology. Human physiology is the study of functions of the human body that can be divided into the following types:. Cell physiology. This is the cornerstone of human physiology; it is the study of the functions of cells. Special physiology. This is the study of the functions of special organs.
There are three basic human body types: the endomorph, characterized by a preponderance of body fat; the mesomorph, marked by a well-developed musculature; and the ectomorph, distinguished by a lack of much fat or muscle tissue.efore you start your training and nutrition regimen, it's a good idea to figure out your body type. Knowing which of the three basic body types you're closest to will help you better tailor your diet and exercise plan and set realistic, attainable goals that pave the way to your success.