In multiple sclerosis the impulses are suppressed or stopped causing scar formation (sclerosis) within the neural tissue.
- Multiple sclerosis (MS) can paralyze the brain and spinal cord (central nervous system). Myelin, the protective sheath that protects nerve fibers, is attacked by the immune system in MS, affecting communication between the brain and body.
- This condition can eventually lead to neurodegeneration or irreversible disability. Signs and symptoms of MS vary widely, depending on the degree of nerve damage and the nerves affected.
- Some people with multiple sclerosis lose the ability to walk on their own or become unable to walk at all, while others walk long distances without developing new symptoms.
- Axons are properly protected by the myelin sheath and these neurons perform their intended function. When the myelin sheath is destroyed in multiple sclerosis-affected nerves, the nerve axons become demyelinated.
Therefore, blockage of impulses is the correct answer.
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