This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Anatomy
[{'content': 'A patient is having a continuous tremor and he has tendency to fall. Lesion Is most commonly seen in? \nSelect and explain. \nA. Globus pallidus, B. Substantia Nigra, C. Caudate lobe, D. Putamen', 'role': 'user'}, {'content': "Answer: B \nExplanation: Patient with continuous tremors and tendency to fall describes the Parkinson's disease. Parkinson disease: Dopamine deficiency in Substantia Nigra. Festinating Gait (stooped posture) Sho shuffling gait Cog wheel rigidity/ lead pipe rigidity Hypophonia: voice intensity | Akinetic Mutism Freezing (Cannot sta the movement)", 'role': 'assistant'}]