In movement disorders, what is a symptom of Parkinson's Disease?

In movement disorders, what is a symptom of Parkinson's Disease?

• A. Cloudiness of eye lenses
• B. Involuntary contractions of skeletal muscles
• C. High-frequency hearing loss
• D. Loss of balance

Answer: (B)

The presence of involuntary contractions of skeletal muscles is an important symptom associated with Parkinson's Disease. This condition is characterized by both motor symptoms and non-motor symptoms. The involuntary contractions are indicative of the muscle rigidity and spasms that can occur due to the impairment of dopamine-producing neurons in the brain. This rigidity makes movement more difficult and can lead to a range of movement disorders including tremors, stiffness, and postural instability. In the context of Parkinson's Disease, this symptom is critical, as it directly impacts the individual’s ability to control movement and perform daily tasks. The other symptoms, while they may relate to different conditions or aspects of health, are not defining features of Parkinson's. For instance, cloudiness of eye lenses is more associated with cataracts, high-frequency hearing loss is not specifically related to Parkinson's, and while loss of balance can occur in Parkinson's patients, it is a secondary effect stemming from the primary motor symptoms like stiffness and rigidity.

The presence of involuntary contractions of skeletal muscles is an important symptom associated with Parkinson's Disease. This condition is characterized by both motor symptoms and non-motor symptoms. The involuntary contractions are indicative of the muscle rigidity and spasms that can occur due to the impairment of dopamine-producing neurons in the brain. This rigidity makes movement more difficult and can lead to a range of movement disorders including tremors, stiffness, and postural instability.

In the context of Parkinson's Disease, this symptom is critical, as it directly impacts the individual’s ability to control movement and perform daily tasks. The other symptoms, while they may relate to different conditions or aspects of health, are not defining features of Parkinson's. For instance, cloudiness of eye lenses is more associated with cataracts, high-frequency hearing loss is not specifically related to Parkinson's, and while loss of balance can occur in Parkinson's patients, it is a secondary effect stemming from the primary motor symptoms like stiffness and rigidity.