Questions: What is a chronic progressive disorder in which demyelination of nerve fibers in the brain, spinal cord, and optic nerves can occur? MS MI ALS CVA

What is a chronic progressive disorder in which demyelination of nerve fibers in the brain, spinal cord, and optic nerves can occur? MS MI ALS CVA
Transcript text: What is a chronic progressive disorder in which demyelination of nerve fibers in the brain, spinal cord, and optic nerves can occur? MS MI ALS CVA
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Solution

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The answer is the first one (or A): MS (Multiple Sclerosis).

Explanation for each option:

A) MS (Multiple Sclerosis): This is the correct answer. Multiple Sclerosis is a chronic progressive disorder characterized by the demyelination of nerve fibers in the brain, spinal cord, and optic nerves. It is an autoimmune disease where the immune system attacks the protective sheath (myelin) that covers nerve fibers, leading to communication problems between the brain and the rest of the body.

B) MI (Myocardial Infarction): This is incorrect. Myocardial Infarction, commonly known as a heart attack, occurs when blood flow to a part of the heart is blocked for a long enough time that part of the heart muscle is damaged or dies. It is not related to demyelination of nerve fibers.

C) ALS (Amyotrophic Lateral Sclerosis): This is incorrect. ALS is a progressive neurodegenerative disease that affects nerve cells in the brain and the spinal cord, leading to loss of muscle control. However, it does not primarily involve demyelination of nerve fibers.

D) CVA (Cerebrovascular Accident): This is incorrect. CVA, commonly known as a stroke, occurs when the blood supply to part of the brain is interrupted or reduced, preventing brain tissue from getting oxygen and nutrients. It is not characterized by demyelination of nerve fibers.

In summary, Multiple Sclerosis (MS) is the disorder associated with demyelination of nerve fibers in the brain, spinal cord, and optic nerves.

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