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Q 2.     What does a neuron look like?

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Neurons or nerve cells are the structural and functional unit of the nervous tissue. The brain, spinal cord, and nerves are all composed of the nervous tissue.

A neuron consists of a cell body with a nucleus and cytoplasm, from which long thin hair-like parts arise. Each neuron consists of axons, a single long part (process), and dendrites, which are the short, branched parts (processes).

The axon transmits impulses away from the cell body, whereas the dendrite receives nerve impulses from other nerve cells or external stimuli.


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