The vision is lost in halves that are contralateral to the posterior cerebral artery that is affected.

视野缺失会发生在受大脑后动脉对侧。

Now, normally damage to brain tissue results in weakness on the contralateral side, so, the Kernohan's notch causes a false localizing sign.

通常情况下，脑部损伤造成肌肉无力发生在占位对侧，所以，Kernohan切迹会导致假性局征象。

We check to see if it's back in place before x-rays by seeing if that arm goes up to the contralateral shoulder, that is the opposite shoulder.

我们检查它是否在 x 光前恢复原位，通过观察手臂是否能碰到另一侧肩，也就是对侧肩。

So that means that each facial nerve contains motor information for the lower face coming from the contralateral motor cortex, and motor information for the upper face coming from both motor cortices.

也就是说，每条面包含两种运动信号：1.控制下半脸运动信号，来自对侧运动皮质；2.控制上半脸运动信号，来自双侧运动皮质。

This causes paralysis of only the lower half of the face on the contralateral side as the lesion, since the upper half of the face is still receiving some information from the ipsilateral motor cortex.

这类病损只会导致对侧下半脸瘫痪，因为上半脸仍然能接收一些来自同侧运动皮质信号。