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应用乙酰胆碱酯酶组织化学方法对圆圃棘口吸虫成虫神经系统进行整体定位染色观察，结果显示虫体神经系统呈左右对称排列，中枢神经节位于咽上方的两侧，由粗大的神经连合相连。从中枢神经节向前伸出前背、前腹和前侧３对神经干，并分出细支分布于口吸盘；向后伸出后背、后腹和后侧３对神经干。其中以后腹神经干最为粗大，从中枢神经节中部向体后端伸出，至虫体后部逐渐变细，约在肠支末端稍上方，每条后腹神经干又分成内外两侧支。内侧支与对侧内侧支汇合，并发出细支下行，与后背神经干的分支及许多横向神经纤维在排泄囊处相连，形成螺旋状神经网。而外侧支继续下行，与后侧神经汇合后发出许多细支，在排泄孔周围与内侧的分支连接形成环状神经网。另外，后腹神经干在下行至腹吸盘水平时，分出一对分支沿腹吸盘形成一较粗的神经环。在后３对纵行神经干间，又有许多横向神经联系将其互相连接成神经网。
The acetylcholinesterase histochemical method was applied to investigate the whole nervous system of the adult Pupae of Chrysoperne alata. The results showed that the nervous system of the Chlamydomonas reinhardtii was bilaterally symmetrical, and the central ganglia were located on both sides of the upper pharynx and connected by the thick nerves . From the central nervous system forward forward anterior, anteroposterior and anterior 3 pairs of neural stem, and the distribution of fine branches in the oral suction cup; back out of the back, posterior and posterior 3 pairs of nerve stem. After which the most extensive abdominal nerve stem, from the central part of the central ganglion to the rear end of the body, to the rear of the body tapering, about at the tip of the intestine slightly above each of the posterior ventral nerve trunk is divided into both sides of the internal and external branches. The medial branch and the contralateral medial branch merge, and issued a fine branch down, and the branch of the dorsal trunk and many lateral nerve fibers connected at the draining of the capsule, the formation of spiral neural network. The lateral branches continued downward, with the posterior nerve convergence after the issue of many fine branches in the drainage hole around the medial branch and the formation of circular neural network. In addition, the posterior abdominal nerve trunk down to the abdominal sucker level, the separation of a pair of branches along the abdominal sucker to form a thicker nerve ring. In the latter three pairs of longitudinal nerve trunk, there are many lateral neural connections to connect each other into a neural network.