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Nervous System

Diseases And Illnesses

TermDefinition
Hydrocephalus -Abnormal accumulation of fluid (CSF) in the brain.
Spina Bifida -Congenital defects in the lumbar spinal column caused by imperfect union of vertebral parts (neural tube defect).
Alzheimer Disease (AD) -Brain disorder marked by gradual and progressive mental deterioration (dementia), personality changes, and impairment of daily functioning.
Amyotrophic Lateral Sclerosis (ALS) -Degenerative disorder of motor neurons in the spinal cord and brain-stem.
Epilepsy -Chronic brain disorder characterized by recurrent seizure activity.
Tonic-Clonic Seizures (Grand Mal or Ictal Events) -Are characterized by a sudden loss of consciousness, falling down, and then tonic contractions (stiffening of muscles) followed by clonic contractions (twitching and jerking movements of the limbs).
Huntington Disease -Hereditary disorder marked by degenerative changes in the cerebrum leading to abrupt involuntary movements and mental deterioration.
Multiple Sclerosis (MS) -Destruction of the myelin sheath on neurons in the CNS and its replacement by plaques of sclerotic.
Myasthenia Gravis (MG) -Autoimmune neuromuscular disorder characterized by weakness of voluntary muscles.
Thymectomy -Is also a method of treatment and is beneficial to many patients.
Palsy -Paralysis (partial or complete loss of motor function).
Cerebral Palsy -Is partial paralysis and lack of muscular coordination caused by loss of oxygen (hypoxia) or blood flow to the cerebrum during pregnancy or in the perinatal period.
Bell Palsy (Or Bell's Palsy) -Is paralysis on one side of the face.
Parkinson Disease (Parkinsonism) -Degeneration of neurons in the basal ganglia, occurring in later life and leading to tremors, weakness of muscles, and slowness of movement.
Tourette Syndrome -Involuntary, spasmodic, twitching movements; uncontrollable vocal sounds; and inappropriate words.
Herpes Zoster (Shingles) -Viral infection affecting peripheral nerves.
Meningitis -Inflammation of the meninges; leptomeningitis.
Human Immunodeficiency Virus (HIV) Encephalopathy -Brain disease and dementia occurring with AIDS.
Brain Tumor -Abnormal growth of brain tissue and meninges.
Cerebral Concussion -Temporary brain dysfunction (brief loss of consciousness) after injury, usually clearing within 24 hours.
Cerebral Contusion -Bruising of brain tissue as a result of direct trauma to the head; neurologic deficits persist longer than 24 hours.
Cerebrovascular Accident (CVA) -Disruption in the normal blood supply to the brain; stroke.
Thrombotic -Blood clot (thrombus) in the arteries leading to the brain, resulting in occlusion (blocking) of the vessel.
Embolic -An embolus (a dislodged thrombus) travels to cerebral arteries and occludes a small vessel.
Hemorrhagic -A blood vessel, such as the cerebral artery, breaks and bleeding occurs.
Aneursym -Weakened area in the vessel wall that balloons and may eventually burst.
Migraine -Severe, recurring, unilateral, vascular headache.
Created by: 9204cef
 

 



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