Wisconsin CNA State Exam Vocabulary Practice

What is the impact of multiple sclerosis on the body?

1. Ability to move easily

2. Maintenance of the mouth

3. Disruption of nerve signaling due to breakdown of protective coverings

4. Development of strong muscles

The correct answer is: Disruption of nerve signaling due to breakdown of protective coverings

The impact of multiple sclerosis on the body primarily involves the disruption of nerve signaling due to the breakdown of the protective coverings of nerve fibers, known as myelin. In multiple sclerosis, the immune system mistakenly attacks the myelin, leading to inflammation and damage. This demyelination impairs the ability of nerve signals to be transmitted efficiently, which can result in a variety of neurological symptoms such as weakness, impaired coordination, and sensory disturbances. Understanding this mechanism is critical for recognizing how multiple sclerosis affects motor function, coordination, and sensory perception in individuals. The other options do not accurately reflect the nature of multiple sclerosis; for example, the ability to move easily and the development of strong muscles are typically compromised in patients due to the disease's effects on the nervous system. Similarly, while the maintenance of the mouth is important, it is not directly influenced by multiple sclerosis in the context of its primary impact on the body.