what are the the caharacteristic figures of neuron? answer:the eurochromatine,spherical nucleus and the distinctive nucleolus.some times there are two nucleolus.the barr apparatus can be seen.we can't see centriole near the nucleus because the neurons do not divide. we see the centrioles at the periphere of perikaryon near the cilia.the function of cilia is not known excatly. it is known that it gets lost by the time except the neurons' have modified ciliaes rod and coni cells in the retina.the neurons have numerous mitochondrias which have spherical or flat shapes and their cristas are vertical or longitudinal.the nissl apparatus are characteristic figure of these cells and ıt is supposed that they protect neurones after travma or damaging events.ıt was seen when neurons were damaged the nissl aparatus dissolved and scattered everywhere of the some.the dendrites have the nissl apparatus,too but axons do not have for this reason it is an advantage for histologists to distinct axons from dentrites.all the neurons have only one axon but the number of dendrites can be changed.the microtubules and microfilamentes are very important for conducting organals,vesicles and metabolites.the protoplasma is syntesized in the soma and conducts to dentrites and axon.it is seen in the soma there are developet granular endoplasmic reticulum and golgi apparatus.the nissl apparatus are thought that they are consist of some granular endoplazmic retuculm cisternaes,free ribosomes and poliribosomes.these all the features of organels say that neurons are very productive cells.they syntesize protein and they are anabolic cells.