77.6k views
4 votes
When 60-80% of the substantia nigra cells stop producing

dopamine, Parkinson's Disease motor symptoms begin to occur.

False
True

1 Answer

6 votes
true- neurodegenerarion
User Kotodid
by
8.9k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.