A unilateral supranuclear lesion affecting the facial nerve typically results in weakness of which facial region?

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The entire face on the same sideOnly the upper part of the face on the same sideThe lower part of the face on the opposite sideThe entire lower face on the same sideNone of the above

Explanation

A lesion above the facial nucleus (supranuclear) usually causes weakness in the lower facial muscles on the side opposite to the lesion, because the upper facial muscles receive bilateral cortical input, sparing them from weakness.