Zygomatic branch, which supplies the Zygomatic Arch.

弓分支，支配弓。

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，即在方1cm处轻轻按压面神，面肌肉会发生抽搐。

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.

神自发放电也会产生Chvostek征，就是在突起处方1厘米处用手指轻轻敲打面神后，产生面肌肉抽搐现象。

These neurons, when activated by seeing someone laugh, cause the contraction of our zygomatic muscles which are responsible for smiling.

这些神在看到他人笑时被激活，从而引起我们肌收缩， 而肌正是负责微笑肌肉。