Parkinson Disease Is the Result of

Multiple Choice

Parkinson disease is the result of

A) weak response of the red nuclei of the mesencephalon.
B) hyperactivity of the limbic system.
C) inadequate production of dopamine by substantia nigra neurons.
D) decreased levels of acetylcholine from neurons in the substantia nigra.
E) inadequate production of GABA by neurons in the basal nuclei.