Q. Consider the following statements:
1.Parkinson’s disease is a chronic neurodegenerative disorder that affects the central nervous system, primarily impacting movement.
2.Parkinson’s disease is mainly characterized by a deficiency of Norepinephrine in the brain.
Which of the statement(s) given above is/are correct?
Answer: A
Notes:
Explanation –
Statement 1 is correct. Parkinson’s disease is a progressive disorder of the nervous system that affects movement, often causing tremors, stiffness, and difficulty with balance and coordination. It is a chronic condition, which means it persists over a long period, and neurodegenerative, meaning it involves the gradual degeneration of neurons in the brain.
Statement 2 is incorrect. Parkinson’s disease is primarily characterized by a deficiency of dopamine, not norepinephrine, in the brain. Dopamine is a neurotransmitter responsible for transmitting signals between nerve cells in the brain, and its depletion results in the motor symptoms observed in Parkinson’s patients.
Source: The Hindu
