Question

question 14 (2.5 points) ______ is a chronic inflammatory disease of the central nervous system in which immune cells attack the myelin sheath of the nerve cell axons.

○ cerebral palsy

○ poliomyelitis

○ multiple sclerosis

○ encephalitis

Explanation:

• Cerebral palsy: Caused by brain damage, not immune attack on myelin.
• Poliomyelitis: Affects motor neurons, not myelin sheath.
• Multiple sclerosis: Autoimmune, immune cells attack CNS myelin sheath.
• Encephalitis: Inflammation of brain tissue, not myelin - focused.

Answer:

C. Multiple sclerosis