Which of the following is a key characteristic of Parkinson's disease?
A) ballistic movements of the limbs
B) difficulty in sitting in a chair
C) tremor during rapid motor movements
D) slowness of movement
E) excessive movement of the tongue and lips

Question

Quizplus · Accepted Answer

Slowness of movement, or bradykinesia, is a key characteristic of Parkinson's disease. This can make simple motor tasks difficult and slow to perform.

Answer: C 
 Tremor during rapid motor movements, or resting tremor, is another hallmark symptom of Parkinson's disease. These tremors occur when the muscles are not being voluntarily moved and typically cease during sleep.

Option A is incorrect as ballistic movements are not associated with Parkinson's disease but rather with conditions such as chorea or Huntington's disease. Option B is incorrect as difficulty in sitting in a chair is not a defining feature of Parkinson's disease but may be a symptom of advanced stages of the condition. Option E is incorrect as excessive movement of the tongue and lips, or dyskinesia, is a side effect of long-term treatment with Parkinson's medication rather than a characteristic of the disease itself.

Which of the Following Is a Key Characteristic of Parkinson's