Multiple choice

Consider the following: I. Parkinson's disease affects around 120,000 people in Britain, with 10,000 new cases diagnosed each year. II. The disease is caused by a loss of nerve cells in one part of the brain. III. The cells release a chemical called dopamine, which allows messages to be sent to parts of the brain that coordinate movement.

Which of the above statements are correct?

  1. Only I and II are correct

  2. Only I and III are correct

  3. Only II and III are correct

  4. All are correct
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All three statements about Parkinson's disease are factually correct. Parkinson's affects approximately 120,000 people in Britain with 10,000 new cases annually. The disease results from the degeneration of dopamine-producing nerve cells in the substantia nigra region of the brain. These cells normally release dopamine, which is essential for coordinating smooth, controlled movement.

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