Actor Michael J. Fox announced that he was leaving his hit show, "Spin City," because he had Parkinson's disease and wanted to spend more time with his family. His disorder is caused by:
A) a loss of dopamine.
B) overproduction of dopamine.
C) overproduction of acetylcholine.
D) a loss of acetylcholine.

Question

Quizplus · Accepted Answer

Parkinson's disease is caused by a loss of dopamine-producing cells in the brain. This dopamine deficiency leads to symptoms such as tremors, rigidity, and difficulty with movement.