There are two populations of neurons which are continually renewed in the adult, the
dentate gyrus granule neurons and the olfactory bulb granule and periglomerular neurons.
In the dentate gyrus, a secondary proliferative zone termed the subgranular zone is
established along the interface between the dentate gyrus and the hilus where granule cells
are born throughout life. Olfactory bulb neurons are generated in the anterior subventricular
zone of the lateral ventricle and migrate via the rostral migratory stream to the olfactory bulb …