Multiple Choice
The symptoms of Parkinson disease become apparent when approximately _____ of cells die in the _____ dopamine pathway.
A) 25% to 30%; nigrostriatal
B) 35% to 50%; mesolimbic
C) 60% to 80%; nigrostriatal
D) 90% to 100%; mesolimbic
Correct Answer:

Verified
Correct Answer:
Verified
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