Jagota A, Habibulla M
Neurobiology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India.
J Morphol. 1992 Sep;213(3):287-94. doi: 10.1002/jmor.1052130302.
Neurons in whole mount preparations of the frontal ganglion (FG) of the cockroach, Periplaneta americana, were mapped with the aid of cobalt chloride staining and silver intensification techniques. Eighty-six neurons were counted in the FG after staining with reduced methylene blue. The cell size ranged between 20 to 35 microns in diameter. Of the somata located in the FG, 44 were found to contribute their fibers to the nervus recurrens, 26 to the right frontal commissure, 28 to the left frontal commissure, and 6 to the nervus connectivus. In addition, a few neurons presumably from the tritocerebral region also contribute their fibers in the formation of nervus connectivus. The present study has helped delineate the neuronal connections of the FG with the brain and neuroendocrine system (corpora cardiaca and corpora allata). This information will be useful in facilitating the positioning of microelectrodes in our future electrophysiological experiments.
借助氯化钴染色和银强化技术，绘制了美洲大蠊额神经节（FG）整装制剂中的神经元图谱。用还原亚甲蓝染色后，在额神经节中计数了86个神经元。细胞直径在20至35微米之间。位于额神经节中的体细胞，有44个将其纤维贡献给回神经，26个贡献给右侧额连合，28个贡献给左侧额连合，6个贡献给连合神经。此外，一些推测来自后脑区域的神经元也在连合神经的形成中贡献其纤维。本研究有助于描绘额神经节与脑和神经内分泌系统（心侧体和咽侧体）的神经元连接。这些信息将有助于在我们未来的电生理实验中促进微电极的定位。
