甲状腺激素对脑发育的临界期(细胞停止分裂而分化开始时)发挥作用最为显著。新生儿甲状腺机能低下出现的异常中,最重要是神经纤维网发育不全。在脑分化期,神经元都有共同的形态转变,即神经细胞的突起形成,这种细胞形状的变化可能是在甲状腺激素控制下出现的,这同在甲状腺机能低下时神经无间联系的数目减少相关。细胞形 Thyroid hormones play the most significant role in the critical stage of brain development (when cells stop dividing and differentiation begins). Neonatal hypothyroidism in the abnormalities, the most important is the nerve fiber hypoplasia. During the process of brain differentiation, neurons have the common morphological change, that is, the formation of neurons. The change of the shape of the cells may be under the control of thyroid hormones, which is similar to the decrease of the number of neural connections in hypothyroidism Related. Cell shape