Nissl body

(redirected from Nissl granule)
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Nissl body

Large granular bodies found in nerve cells. They can be demonstrated by selective staining. They are rough endoplasmic reticulum (with ribosomes) and are the site of protein synthesis. Nissl bodies show changes under various physiological conditions, and in pathological conditions they may dissolve and disappear (chromatolysis).
Synonym: Nissl granule See: tigroid bodies.
See also: Nissl, Franz
References in periodicals archive ?
Nissl stains the rough endoplasmic reticulum and polyribosomal complexes in these cell bodies, which can be seen as Nissl granules under the light microscope.
Special staining also revealed a decrease in the quantity of Nissl granules.