This can trigger the spontaneous firing of neurons and tetany, or the involuntary contraction of muscles.

这可以触发神经元的自发放电，以及强直，即肌肉不自觉地收缩。

The spontaneous firing of neurons also leads Chvostek's sign, which is when facial muscles twitch after the facial nerve is lightly finger tapped 1 cm below the zygomatic process.

神经元的自发放电也会产生Chvostek征，就是在颧骨突起处下方1厘米处用手指轻轻敲打面神经后，产生面部肌肉抽搐的现象。