What is the pathophysiologic change in Parkinson's disease?
A) degeneration of motor fibers in the pyramidal tracts
B) excess secretion of stimulatory neurotransmitters in the CNS
C) degeneration of the basal nuclei with a deficit of dopamine
D) deficit of acetylcholine and degeneration of the motor cortex in the frontal lobe
Correct Answer:
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