甲状腺激素和甲状腺刺激素的水平,在胎儿娩出后急剧增加。交感神经系统被激活,肾上腺髓质分泌儿茶酚胺,特别是去甲肾上腺素的释放,主要反应在胎几期间。因此,垂体,甲状腺和交感神经系统在出生不满一个月的新生儿适应子宫外的生活环境就显得十分重要。作者研究了垂体,甲状腺轴与胎儿在分娩时肾上腺素能的活性两者之间的关系。材料和方法: Thyroid hormones and thyroid stimulating hormone levels, the sharp increase in the fetus after delivery. Sympathetic nervous system is activated, the secretion of catecholamine adrenal medulla, norepinephrine release in particular, the main reaction in the fetal period. Therefore, the pituitary, thyroid and sympathetic nervous systems in newborns less than one month to adapt to the living environment outside the uterus is very important. The authors studied the relationship between pituitary, thyroid axis, and fetal adrenergic activity at childbirth. Materials and Method: