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neuron consists of a cell body with many ‘projections’ leading away from it. Most of these projections are ‘dendrites’, which collect information from other neurons and bring it to the cell body.
he central nervous system includes the brain and spinal cord, while the peripheral includes the nerves that extend to your skin and muscles, and which carry sensory and motor signals, or impulses.
most neurons the axon is coated with a fatty white sheath called ‘myelin’, which acts as a kind of insulator, speeding the transmission of nervous signals.
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