Neural stem cells exist in the subventricular zone (SVZ) of lateral ventricle and the dentate gyrus (DG) of hippocampus in central neural system (CNS) throughout the life of adult mammals, so does neurogenesis in adult brain.

• 在成年哺乳动物中枢神经系统内，神经干细胞(Neural stem cells，NSCs)在侧脑室室管膜下区(Subventricular zone，SVZ)和海马齿状核(Dentate gyrus，DG)等处终生存在，神经发生现象也终生维持。