Q. With reference to Multiple sclerosis, consider the following statements;
1.It occurs when the immune system attacks the nerve fibres and myelin sheathing in the brain and spinal cord.
2.The vulnerable group of multiple sclerosis are elderly people, especially the persons aged above 70 years.
Which of the statements given above is/are correct?
Answer: A
Notes:
Statement 1 is correct: It occurs when the immune system attacks the nerve fibres and myelin sheathing (a fatty substance which surrounds/insulates healthy nerve fibres) in the brain and spinal cord.
Statement 2 is incorrect: It affects young individuals between the ages of 20 to 40 years but may also occur in children and adolescents. Females are affected more by this disease than males.
Source: Indian Express
