Matching Pairs 4.18 Diseases of the Nervous System Online version Some diseases of the Nervous System by Jorge Arizpe 1 Anxiety: Mental disorder characterized by a lot of concern and insecurity 2 Brain tumor: abnormal cell growth 3 Meningitis: infection in the meninges 4 Depression: mental disorder characterized by sadness. 5 Parkinson: Lack of coordination and tremors. Death of the cells the the substantia nigra 6 Epilepsy: appearance of abnormal electric activity in the brain 7 Multiple sclerosis: destruction of the myelin sheath. 8 It is a synonym of headache 9 Encephalitis: brain inflamation. It can be caused by a virues 10 Poliomyelitis: virus that atacts the bone marrow and provoques muscular athrophy and paralysis.