Neurology: What would someone's face look like if they had an Upper motor neuron lesion?

Question

What would someone's face look like if they had an Upper motor neuron lesion?

Alexandra Jessie Wilson · Accepted Answer

This would cause one lower quadrant (on the effected side) to droop. It's important to note that UPPER motor neuron lesions affect ONLY the LOWER face.

This is because the part of the facial nucleus controlling the upper half of the face is bilaterally innervated.

Neurology

What would someone's face look like if they had an Upper motor neuron lesion?

This would cause one lower quadrant (on the effected side) to droop. It's important to note that UPPER motor neuron lesions affect ONLY the LOWER face. This is because the part of the facial nucleus controlling the upper half of the face is bilaterally innervated.

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