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Asked Feb 25, 2020
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how does nervous system develop over life time?

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Expert Answer

Step 1

The nervous system develops from a specialized small plate of cells along the back of embryo. In the early stage of development, edges of this plate start to curl up towards each other and create a neural tube. Neural tube is a narrow sheath that closes to form the spinal cord and the brain of embryo.

Step 2

The nervous system is consists of central nervous system (CNS) and peripheral nervous system (PNS). CNS contains brain, spinal cord, and retina, whereas PNS contains sensory neurons, nerves, and ...

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