The cerebrospinal fluid (CSF)-contacting neuron is not a paraneuron. The reasons why a chapter of the present volume is devoted to this neuron are: (1) It has certain cell-biological features in common with paraneurons (Nakai et al. 1977a, b); (2) it is homologous to retinal and pineal paraneurons, as has already been discussed (see pp. 241, 248); and (3) it has recently been regarded as the prototype of neurons, possibly sharing chemoreceptive and secretory features with bipolar paraneurons (see below).
KeywordsCentral Canal Dense Granule Dendritic Process Neural Canal Striate Rootlet
Unable to display preview. Download preview PDF.