Final answer:
Parkinson’s disease is caused by the degeneration of neurons that release dopamine, leading to symptoms such as tremors, slowed movement, and rigidity.
Step-by-step explanation:
Parkinson’s disease is characterized by the degeneration of neurons that release a specific neurotransmitter critical for regulating movement. The correct answer to the question is b) Dopamine. In Parkinson’s disease, the loss of dopamine neurons in the substantia nigra leads to hallmark symptoms such as tremors, slowed movement, rigidity, and balance problems.
Treatments often focus on providing L-DOPA, a dopamine precursor, to increase dopamine levels in the striatum and alleviate symptoms temporarily. However, as the disease progresses, patients typically become less responsive to L-DOPA treatment.Parkinson's disease is caused by the degeneration of neurons that release dopamine. The loss of dopaminergic neurons in the substantia nigra leads to a decrease in dopamine levels in the brain, resulting in the motor symptoms associated with Parkinson's disease.