Multiple Choice
Damage to the substantia nigra causes a decrease in the neurotransmitter dopamine. This causes a gradual, generalized increase in muscle tone, which is the main symptom of
A) tetanus.
B) Alzheimer disease.
C) myasthenia gravis.
D) rabies.
E) Parkinson disease.
Correct Answer:

Verified
Correct Answer:
Verified
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