GENERAL HISTOLOGY

Detailed explanation-1: -Adult neurogenesis, a process of generating functional neurons from adult neural precursors, occurs throughout life in restricted brain regions in mammals.

Detailed explanation-2: -New hippocampal neurons continue to form in older adults, including those with MCI, Alzheimer’s. Neurogenesis-the process of forming new brain cells-appears to continue in people well into old age, according to a recently published study funded in part by the NIA.

Detailed explanation-3: -Adult neurogenesis can be divided into four phases: a precursor cell phase, an early survival phase, a postmitotic maturation phase, and a late survival phase.

Detailed explanation-4: -Neurogenesis is the process by which new neurons are formed in the brain. Neurogenesis is crucial when an embryo is developing, but also continues in certain brain regions after birth and throughout our lifespan.

Detailed explanation-5: -Neurogenesis is the formation of neurons de novo-the hallmark of a developing brain. In an adult animal brain, neurogenesis is said to occur in the lateral subventricular zone (SVZ) and the DG of the hippocampus (Figure 1).