The size of AOB, the length of the granule cell and the mitral cell zones, and the density of granule cells increased with age also, while the density of mitral cells increased from age 0 to age 15 days, then declined.

• 出生后 15日内 ,僧帽细胞层细胞密度增加 ,15日龄以后又开始降低 ,2 5日龄及成体的僧帽细胞层细胞密度与 5日龄的相似 ;