By bending in the middle and using fast twitch muscle fibers, they can whip around without ever changing their net angular momentum.

透过在身体中断弯曲并使用快肌纤维，它们可以在不改变其净角动量的情况下摆动。

This can end up causing Chvostek's sign, which is when facial muscles twitch after the facial nerve is lightly finger tapped 1 cm below the zygomatic process.

这最终会导致Chvostek征，即在颧骨下方1cm处轻轻按压面神经，面部肌肉会发生抽搐。

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。