With the development, the PVN was gradually enlarged in size and NOS neurons were predominantly confined within lateral magnocellular and ventral subdivisions of PVN.

• 随着生长发育,PVN的面积逐渐变化,NOS神经元主要集中在PVN的外侧大细胞部及腹侧部,细胞逐渐增多,胞体的平均截面积逐渐变大,平均灰度值逐渐降低。