在初中《生理卫生》教材的“运动系统”、“循环系统”、“呼吸系统”和“神经系统”等章节中,编入了体育锻炼对这些系统影响的内容,将卫生保健和体育锻炼知识有机地结合起来,这是很有必要的。本文就如何理解这部分教材,进行初步探讨,并对教学方法提出一些意见。 (一)体育锻炼对各系统的影响,是通过新陈代谢的加强实现的,在教学中要抓住这一核心问题体育锻炼之所以能改善人体的形态结构,提高人体各系统的机能,基本原因是体育锻炼能促进人体的新陈 In the chapter “Exercise System”, “Circulatory System”, “Respiratory System” and “Nervous System” in the textbook of “Physiological Health” in junior high school, the content of the impact of physical exercise on these systems is compiled, and the knowledge of health care and physical exercise It is necessary to combine organically. This article on how to understand this part of the textbook, a preliminary discussion, and put forward some suggestions on teaching methods. (A) the impact of physical exercise on various systems, through the strengthening of metabolism to achieve in the teaching to grasp the core issue Physical exercise can improve the body’s morphological structure and improve the function of the human body system, the basic reason is Physical exercise can promote the body’s new