An animated analogy to explain how upper and lower motor neuron facial palsy causes differing patterns of facial weakness

Timecodes
00:00 - Intro
00:22 - Motor cortex
00:35 - Contralateral Corticonuclear Tract
00:39 - Ipsilateral Corticonuclear Tract
01:14 - Facial Motor Nucleus
01:23 - Facial Nerve
01:42 - Lower Facial muscles
02:03 - Upper Facial muscles
02:32 - Bilateral cortical representation
03:16 - Normal Facial Movement
03:33 - Upper and Lower Motor Neuron
03:58 - Right Upper Motor Neuron Facial Palsy
05:02 - Volitional Facial Weakness with Emotional Sparing
05:58 - Left Lower Motor Neuron Facial Palsy
06:06 - Bell's Palsy
06:38 - Bilateral Lower Motor Neuron Facial Palsy
06:46 - Summary

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