<P> Nissl bodies can be demonstrated by a method of selective staining developed by Nissl (Nissl staining), using an aniline stain to label extranuclear RNA granules . This staining method is useful to localize the cell body, as it can be seen in the soma and dendrites of neurons, though not in the axon or axon hillock . Due to RNA's basophilic ("base - loving") properties it is stained blue by this method . </P> <P> Nissl bodies show changes under various physiological conditions and in pathological conditions they may dissolve and disappear (chromatolysis). </P> <P> The functions of Nissl bodies is thought to be the same as that of the rest of the ER and the golgi apparatus: the manufacture and release of proteins . </P> <P> The ultrastructure of Nissl bodies suggests they are primarily concerned with the synthesis of proteins for intercellular use . </P>

Where are nissl granules found and what is their nature