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19 August, 22:54

As mentioned that the brain contains at least 100 billion neurons, more than a person needs, the brain going through rapid growth has transient exuberance which needs pruning. Why does the brain need to be pruned?

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  1. 20 August, 02:45
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    When old or degraded neurons are removed and replaced in the brain cells so that extra synaptic connections and axons are removed, while stabilizing the needed ones the process is called brain pruning.

    It ensures efficiency of synaptic connections.

    It occurs in childhood and adulthood, and its occurs to maintain neuronal networks in the brain through reduction in number of synapses and neurons.

    Thus it is important in childhood to create new synaptic connections for the child's brain during development to create new pathways for complex synaptic transmission needed for child developments.
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