Chase R, Kamil R
J Neurobiol. 1983 Jan;14(1):29-42. doi: 10.1002/neu.480140105.
The snail tentacle ganglion is a prominent structure that innervates an epithelial pad sensitive to wind and odors. Its neural composition, and that of the sensory pad, was studied in the terrestrial snail Achatina fulica by applying horseradish peroxidase to the distal end of the cut tentactle nerve. Five types of neurons were labelled by the procedure: receptors, located in the subepithelial region; three kinds of interneurons, located in the ganglion and its digitlike extensions; and a bipolar neuron, located in the dermo-muscular wall of the tentacle. In contrast to earlier descriptions based on silver stains, the present results demonstrate the presence of neurons of large size (soma diameters up to 46 microns). Also, contrary to earlier interpretations, the results indicate that all five identified cell types send axons directly to the CNS.
蜗牛触角神经节是一个显著的结构，它支配着一个对风和气味敏感的上皮垫。通过将辣根过氧化物酶应用于切断的触角神经的远端，对陆生蜗牛褐云玛瑙螺的神经节及其感觉垫的神经组成进行了研究。通过该方法标记了五种类型的神经元：位于上皮下区域的感受器；位于神经节及其指状延伸部分的三种中间神经元；以及位于触角真皮-肌肉壁中的双极神经元。与早期基于银染的描述不同，目前的结果表明存在大尺寸神经元（胞体直径可达46微米）。此外，与早期的解释相反，结果表明所有五种已识别的细胞类型都直接将轴突发送到中枢神经系统。
