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一、青春期身体的变化与其原动力青春期身体变化的原动力是性激素。图1所示的是男子各种激素参与发育与年龄的关系。如图1所示,在婴儿期向幼儿期过渡的第一发育期的前半期,首先是甲状腺的作用促使身高和体重等的发育,接着主要是脑下垂体的作用促使发育。在向第二发育期过渡的青春期,主要是分泌类固醇性机能的活跃促使身体发生显著变化。进入青春期由于下垂体分泌性腺激素增
First, the adolescent body changes and the driving force behind the body motivation of adolescence is sex hormones. Figure 1 shows the relationship between men’s various hormones involved in development and age. As shown in Fig. 1, in the first half of the first stage of transition from infancy to early childhood, the thyroid gland promotes the development of height and weight, followed by the pituitary gland primarily for development. In adolescence, which transitions to the second developmental stage, the active predominantly secretive steroid function causes significant changes in the body. Adolescent due to pituitary gland hormone secretion increased