高中必修教材“人和高等动物的生命活动调节”一节内容多、概念抽象、知识繁杂,学生一时难以正确理解,不易掌握,而课本上又未安排实验。为了加深学生对“激素”概念的理解和对其功能的认识,明确“激素调节”的重要意义,我选择了垂体中的腺垂体分泌中叶激素引起黑色素细 The compulsory materials for senior secondary school “Management of life activities of people and higher animals” have a lot of contents, abstract concepts, and complicated knowledge. Students are difficult to correctly understand and difficult to grasp, and there is no experiment in textbooks. In order to deepen the students’ understanding of the concept of “hormone” and their understanding of the function and the importance of “hormonal regulation”, I chose the gland hormone in the pituitary gland to cause melanin secretion.