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Apoptosis is the programmed death of a cell. This is not required for pruning of connections. During development, axons and dendrites of neurons undergo extensive lengthening, branching and also retraction. Simultaneous with this process, many many synapses are being constructed and deconstructed between axons and nearby dendrites. Also during adulthood, ...


It's hard to say just, because it depends on the location of the head injury and how severe the head injury is. The brain is composed of several lobes which all have a different functions. Depending on the location and severity of the brain injury, the symptoms show up. For example, when you get brain injury in the frontal cortex, and this is severe enough, ...

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