Parkinson's symptoms appear when 100% of the nerve cells in the substantia nigra are damaged.

Substantia Nigra

A region of the brain involved in movement control, known for its role in Parkinson's disease due to the death of dopamine-generating neurons.

Nerve Cells

Also known as neurons, these are the basic building blocks of the nervous system, responsible for transmitting information throughout the body.

Comprehend the progression and treatment options for neurodegenerative disorders, with a focus on Parkinson's and Alzheimer's diseases.

Verified Answer

Final Answer :

False

Explanation :

Parkinson's symptoms may appear when 70-80% of the nerve cells in the substantia nigra are damaged, not necessarily 100%.

Learning Objectives

Comprehend the progression and treatment options for neurodegenerative disorders, with a focus on Parkinson's and Alzheimer's diseases.