Quiz: Multiple Sclerosis
Question 1 of 3  

Myelin is the substance that covers most nerve fibers. This covering is called the myelin sheath. In multiple sclerosis (MS), patches of myelin are damaged or destroyed. The cause of MS is unknown but may involve which of the following?

  • A.

    Spinal fluid loss

  • B.

    An autoimmune reaction

  • C.

    A tumor of the nervous system

  • D.

    Poor nutrition early in life

Am I correct?