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What is TRUE regarding upper motor neuron VIIth nerve paralysis is: and explain in detail?
Answer is D (Contralateral lower face paresis): Upper motor neuron VII nerve palsy causes contralateral facial muscle paresis that is worse in the lower facial muscles. With UMN lesion the forehead is relatively spared. This is a unique feature seen only with facial nerve. The pa of facial nerve supplying the upper half of face has bilateral coical representation and thus in a unilateral UMN lesion the upper half of face escapes paresis.