neurons development

neurons development - Neurons are formed in the...

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Neurons are formed in the proliferative zone of the neural tube and migrate outwards In both brain and spinal cord, all neurons and glia arise from a proliferative layer of epithelial cells that lines the lumen of the neural tube. Ventricular zone: the lumen of the neural tube; Initially, they are rounded-up dividing cells, once formed, neurons migrate outward. The cells in the ventricular zone are the neural progenitor cells,which give rise to both neurons and glia. Ngn family TF: to initially specify the neural progenitor cell daughters as neurons. A neural progenitor cell is multipotent; Two mechanisms are involved. 1) 1 gives rise to two similar cells (both progenitor cells or both neurons); 2) Asymmetric division (1 to one progenitor stem cell and one neuron). The newly formed neurons are often designated post-mitotic neurons.
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The cortex is organized into six layers. Each contains
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This note was uploaded on 09/03/2009 for the course BIO 503 taught by Professor Z.zyang during the Fall '09 term at Nanjing University.

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neurons development - Neurons are formed in the...

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