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Topic Content:
The Neuron is the structural and functional unit of the nervous system.
It consists of three main parts:
- The cell body (soma): It consists of the nucleus and the cytoplasm.
- Dendrites or Dendrons: Dendrites are short cytoplasmic filaments which convey impulses to the cell body. The dendrons carry nerve impulses that their dendrites receive to the cell body.
- Axon: It is a long nerve fibre from the cell body.
Each axon is enclosed within a fatty myelinMyelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances. This myelin sheath... More sheath. The myelin sheath is formed by Schwann cells and is interrupted at intervals by constriction known as nodes of
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