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neuron

/ˈnjʊərɒn/

nounBiology/Neuroscience

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A specialized cell that transmits nerve impulses; a nerve cell.

  • The brain contains billions of neurons.
  • Neurons communicate through electrical signals.
  • Damaged neurons can't be easily replaced.
  • Synaptic plasticity allows each neuron to strengthen or weaken its connections with neighboring cells, forming the basis of learning and memory.
  • Degenerative diseases such as Parkinson's result from the progressive loss of dopamine-producing neurons in specific brain regions.
  • Advanced imaging techniques enable neuroscientists to observe individual neuron activity in living organisms, revealing how neural networks process sensory information.