action potential
action potential
action potential
n.（名词）
A momentary change in electrical potential on the surface of a nerve or muscle cell that takes place when it is stimulated, especially by the transmission of a nerve impulse:
动作电位：神经或肌肉细胞受到刺激时，特别是神经冲动的传递过程中在神经或肌肉细胞表面发生的电位的暂时变化：
Stimulating a nerve fiber causes an action potential to spread across the nerve cell, making it contract.
刺激神经纤维导致动作电位传遍神经细胞，从而使之收缩
