Szabo T, Blähser S, Denizot J P, Ravaille-Véron M
Département de Neurophysiologie Sensorielle, C.N.R.S., Gif sur Yvette, France.
Neuroreport. 1991 Feb;2(2):73-6. doi: 10.1097/00001756-199102000-00002.
Immunohistochemistry revealed a distinct terminal nerve (nT) from the olfactoretinalis system (ORS) in several gymnotid species. The ganglion (NOR) of the ORS is a cluster of FMRF-amide immunoreactive neurones located on the olfactory nerve and bulb. The NOR projects to the olfactory bulb and optic nerve but not to the olfactory epithelium. In contrast, the nT is a small substance P or GnRH immunoreactive fibre bundle which originates from a ganglion located rostral to the olfactory epithelium, courses caudally with the olfactory nerve and terminates as glomeruli in the olfactory bulb. Peripherally the ganglion projects to the epithelium of the anterior nostril. Thus, the terminal nerve appears to be a cranial nerve, clearly distinct from the ORS which consequently should no longer be considered as the terminal nerve.
免疫组织化学显示，在几种电鳗目鱼类中，存在一条与嗅觉视网膜系统（ORS）截然不同的终末神经（nT）。ORS的神经节（NOR）是位于嗅神经和嗅球上的一组FMRF酰胺免疫反应性神经元。NOR投射到嗅球和视神经，但不投射到嗅上皮。相比之下，nT是一束小的P物质或GnRH免疫反应性纤维束，它起源于位于嗅上皮前方的一个神经节，与嗅神经一起向尾侧走行，并在嗅球中以小球的形式终止。在周围，该神经节投射到前鼻孔的上皮。因此，终末神经似乎是一条颅神经，与ORS明显不同，因此不应再将ORS视为终末神经。
