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perikaryon Line breaks: peri|karyon
Pronunciation: /ˌpɛrɪˈkarɪən/

Definition of perikaryon in English:

noun (plural perikarya ˌpɛrɪˈkarɪə)

The cell body of a neuron, containing the nucleus.
Example sentences
  • The perikaryon of a microglial cell is irregular in shape, and, if elongated, the few processes emanate from both of its poles.
  • The presence of these nerve cells at the surface exposes them unduly to damage; it is estimated that 1 per cent of the fibers of the olfactory nerves (axons of olfactory neurons) is lost each year of life because of injury to the perikarya.
  • The perikarya of the unpaired ventral nerve cord are distributed over almost the entire length of a trunk segment.


Example sentences
  • Typically, the localization was diffuse within the individual tumor cells and was distributed equally in both the perikaryal cytoplasm and in major fibrillated cell processes.
  • Immunohistochemically, the cells with ganglionic features showed focal perikaryal staining for synaptophysin and chromogranin.
Definition of perikaryon in:
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