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LAQ : What is a neurone? Describe the structure of the neurone with a diagram

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What is a neurone? Describe the structure of the neurone with a diagram.

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Neurone

A neuron is the basic unit of the nervous system. It is a specialized cell that receives, processes and transmits information. Neurons are made up of three main parts: the dendrites, the cell body, and the axon.

Here are some additional details about the structure of a neuron:

  • Dendrites: Dendrites are typically short and branched, and they receive signals from other neurons.
  • Cell body: The cell body contains the nucleus and other organelles of the neuron. It is also where protein synthesis takes place.
  • Axon: The axon is a long, thin extension of the cell body that transmits signals to other neurons.
  • Myelin sheath: The myelin sheath is a fatty layer that surrounds the axon and insulates it. This helps to speed up the transmission of signals.
  • Nodes of Ranvier: Nodes of Ranvier are gaps in the myelin sheath. These gaps allow the electrical signals to jump from node to node, which further speeds up the transmission of signals.

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