IntroductionMost synapses in CNS are covered by astrocytes, which respond to neuronal activity by increases in cytosolic Ca~(2+) .

• 在中枢神经系统中有许多突触联系由星形胶质细胞所包绕,胶质细胞通过增加细胞内的Ca~(2+)而对神经活动发挥作用。