Patients with _____ have progressive degeneration of the basal ganglia,a group of nuclei in the brain that control smooth motor coordination.

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Parkinson's disease is characterized by the progressive degeneration of the basal ganglia, leading to a lack of smooth motor coordination. Dementia is a broad term referring to cognitive decline, not necessarily motor coordination. Huntington's disease also affects the basal ganglia, but presents with different symptoms such as involuntary movements and behavioral changes. Polio primarily affects the motor neurons in the spinal cord and can lead to muscle weakness, but it does not involve the basal ganglia.

Patients with _____ Have Progressive Degeneration of the Basal Ganglia,a