A Disease of the Brain Tissue in Which the Myelin

Multiple Choice

A disease of the brain tissue in which the myelin sheath (the fatty material wrapped around and insulating the parts of nerve cells that conduct nerve impulses in the brain to other nerve cells) deteriorates, thereby causing varying degrees of muscular dysfunction, paralysis, and muscle tremors is called:

A) muscular dystrophy.
B) myasthenia gravis.
C) multiple sclerosis.
D) paraplegia.