This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
TRUE regarding upper motor neuron VIIth nerve paralysis is: 
Select and explain. 
A. Ipsilateral upper face paresis, B. Ipsilateral lower face paresis, C. Contralateral upper face paresis, D. Contralateral lower face paresis
D: Contralateral lower face paresis
Answer: D: Contralateral lower face paresis 
Explanation: 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.