蟋蟀下行脑神经元形态与功能的研究进展

Progress in Research on Morphology and Function of Descending Brain Neurons in Cricket

蟋蟀下行脑神经元通过围咽神经索将编译、整合的信息传递到腹、胸等神经节的运动中枢,约占脑神经元总量的0.3‰-1.5‰,并能高效的聚集信息.传递触角感觉信息的下行脑神经元分支多聚集在中脑;外界刺激信息通过下行脑神经元传递到运动中枢支配行走,同时不断接收听觉、视觉信息调整行走的速度和方向.研究下行脑神经元的形态结构与功能将为研究昆虫微小脑的控制原理提供重要的理论依据.

Descending brain neurons in cricket transfer information which, have conformity translated to locomotory centrum of abdominal ganglion, and thoracic ganglion, which only represent about 0.3‰ - 1.5‰ of the brain neurons, and illustrate the large degree of convergence of other neurons onto them. Descending brain neurons for transferring antennal sensory information have their major dendrite in the lateral deutocenebrum; they can transfer outside stimulative information to locomotory centrum to control walking, incepting the information of auditory and vision to control of its velocity and direction. The study of descending brain neurons＇ morphological structure and function can provide significant theoretic foundation for studlying control principle of insect micro cerebellum.