"For use",as an effective method to guide correctly know the human body,not only to reveal the normal structure and function of the human body has a meaning,more in disease etiology,development and outcome has important guiding significance. There's a very important role in the channel,physical state and system of the human body in maintaining the normal strueture,function and the disease process,thus the correct understanding of the relationship between "for use"and human channel,physical state,and system is ...