Oka Y
Brain Res. 1980 Mar 10;185(2):215-25. doi: 10.1016/0006-8993(80)91063-x.
The origin of the centrifugal fibers to the olfactory bulb in the goldfish was examined by injecting a fluorescent dye, primuline, into the olfactory bulb by means of hydraulic pressure. Three to five days after the primuline injection, which was confined to the unilateral olfactory bulb, a large number of primuline-labeled perikarya appeared in two telencephalic areas on the ipsilateral side: the area ventralis telencephali pars dorsalis (Vd) and the ventral part of the area dorsalis telencephali pars lateralis (Dlv). No labeled cells were observed in the other olfactory bulb or in the contralateral telencephalic hemisphere or more posterior part of the brain. A combination of the primuline injection and the transection of either the medial or lateral olfactory tract showed that the main course of the centrifugal fibers was through the medial olfactory tract. These results may support Sheldon's opinion that the so-called tractus olfactorius ascendens, which corresponds to the medial part of the medial olfactory tract, is a centrifugal bundle originating from the cells in the nucleus medianus. The areas of the telencephalic hemisphere into which the olfactory bulbar fibers projected were also examined and compared with the originating areas of the centrifugal fibers. There was a considerable overlap between these two areas. This suggests a reciprocal connection between the olfactory bulb and the telencephalon.
通过液压将荧光染料 primuline 注入金鱼的嗅球，研究了其离心纤维至嗅球的起源。将 primuline 注射到单侧嗅球后三至五天，大量被 primuline 标记的胞体出现在同侧的两个端脑区域：端脑腹侧部背侧区（Vd）和端脑背侧部外侧区腹侧部（Dlv）。在另一侧嗅球、对侧端脑半球或脑的更后部未观察到标记细胞。将 primuline 注射与内侧或外侧嗅束横断相结合表明，离心纤维的主要路径是通过内侧嗅束。这些结果可能支持谢尔登的观点，即所谓的嗅升束，相当于内侧嗅束的内侧部分，是一束起源于正中核细胞的离心束。还检查了嗅球纤维投射到的端脑半球区域，并与离心纤维的起源区域进行了比较。这两个区域之间有相当大的重叠。这表明嗅球和端脑之间存在相互联系。
