<prompt> A patient is having a continuous tremor and he has tendency to fall. Lesion Is most commonly seen in?Globus pallidusSubstantia NigraCaudate lobePutamen  <response>: Patient with continuous tremors and tendency to fall describes the Parkinsons 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 