What are the hallmark symptoms of Parkinson disease?
Group of answer choices
- Difficulty in initiating movements, along with tremors and stiffness
- Sudden loss of muscle control leading to falls, and memory loss
- Rapid deterioration of cognitive functions and loss of balance
- Rapid, involuntary movements primarily in the hands and feet
The correct answer is:
Difficulty in initiating movements, along with tremors and stiffness
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Explanation:
Parkinson’s disease is characterized by the following hallmark symptoms:
- Bradykinesia (difficulty initiating and performing movements)
- Resting tremor (typically seen in the hands or fingers)
- Muscle rigidity (stiffness in the limbs and trunk)
- Postural instability (difficulty maintaining balance, leading to falls).
These symptoms are due to a loss of dopaminergic neurons in the brain, particularly in the substantia nigra. Cognitive decline can occur later, but the primary symptoms are motor-related.
