存在于神经元的轴突末梢与另一个神经元树突间，可以传递神经冲动，进行联络的特殊连接部位synapse

• 为了解析大脑的奥秘，科学家一直在集中研究神经突触。

  In order to analyze the mysteries of the brain, scientists have always focused on studying the nerve synapses.

• 第一组实验鼠大脑内连接神经元的突触活动有所减少。

  There was a decrease in synaptic activity between neurons in the brains of the first group of mice in the experiment.