Multiple sclerosis questions with correct answers

What is the cause of multiple sclerosis? CORRECT ANSWER-Autoimmune attack against myelin sheath of nerves. Genetics play a role (not genetically transmitted though) Environmental risks: Smoking, lack of vitamin D, and exposure to the Epstein-Barr virus Different types of Multiple Sclerosis CORRECT ANSWER-Relapsing remitting (85%) - With each relapse, recovery is complete but residual deficits may accumulate over time. Secondary progressive - Progresses from relapsing remitting. This type occurs with or without relapses. Primary progressive (15%) - Disabling symptoms steadily increase. This type can result in quadriparesis, cognitive dysfunction, visual loss, and brain stem syndrome. Progressive relapsing (5%) - Characterized by relapses with continuous disabling progression between exacerbations. Signs and Symptoms CORRECT ANSWER-Main symptoms: - Fatigue - Depression - Weakness