Consider the following:

I. Parkinson's disease affects around 120,000 people in Britain, with 10,000 new case 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.

Select the Code:

All three statements about Parkinson's disease are correct. Statement I gives accurate epidemiological statistics for Britain. Statement II correctly states that Parkinson's is caused by loss of dopamine-producing nerve cells in the substantia nigra region of the brain. Statement III correctly describes the role of dopamine in transmitting messages to coordinate movement.