What Happens During an Autoimmune Disease Such as Multiple Sclerosis

Question

What happens during an autoimmune disease such as multiple sclerosis?
A) B cells are no longer able to make antibodies.
B) Helper T cells are no longer produced.
C) Infectious agents are able to hide in immune system cells.
D) Immune system cells attack healthy body cells.

Accepted Answer

During an autoimmune disease such as multiple sclerosis, the immune system cells mistakenly attack healthy body cells, causing inflammation and damage. Specifically, in multiple sclerosis, the immune system attacks the protective coating (myelin) around nerve fibers in the central nervous system. This leads to communication problems between the brain and the rest of the body, resulting in various symptoms such as muscle weakness, fatigue, and difficulty with coordination and balance.