This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Facial Nerve And Its Disorders, Subject name: ENT
Bell's palsy is paralysis of: 
Select and explain. 
A. UMN Vth nerve, B. UMN VIIth nerve, C. LMN Vth nerve, D. LMN VIIth nerve
D: LMN VIIth nerve
Answer: D: LMN VIIth nerve 
Explanation: (d) LMN VIIth nerve(Ref. Cummings, 6th ed., 2619)In LMN VIIth nerve palsy (Most common being Bell's palsy) the complete half of the ipsilateral side of face gets involved.In UMN VIIth nerve palsy the lower half of the opposite side of face gets involved.